diff --git a/api/rag/document.proto b/api/rag/document.proto
index 9879412..ac61436 100644
--- a/api/rag/document.proto
+++ b/api/rag/document.proto
@@ -26,9 +26,38 @@ message ListDocumentResponse {
 
 message CreateDocumentBlockRequest {
   int64 document_id = 1;
+  int64 order = 2;
+  string content = 3;
+}
+
+message CreateDocumentBlockResponse {
+  DocumentBlock document_block = 1;
+}
+
+message DeleteDocumentBlockRequest {
+  int64 id = 1;
+}
+
+message DeleteDocumentBlockResponse {
+}
+
+message ListDocumentBlockRequest {
+  int64 document_id = 1;
+}
+
+message ListDocumentBlockResponse {
+  repeated DocumentBlock document_blocks = 1;
+}
+
+message UpdateDocumentBlockRequest {
+  int64 id = 1;
   string content = 2;
 }
 
+message UpdateDocumentBlockResponse {
+  DocumentBlock document_block = 1;
+}
+
 message Document {
   int64 id = 1;
   string name = 2;
diff --git a/api/rag/rag.proto b/api/rag/rag.proto
index 5baee60..d60664f 100644
--- a/api/rag/rag.proto
+++ b/api/rag/rag.proto
@@ -37,5 +37,29 @@ service RAGService {
     };
   }
 
+  rpc ListDocumentBlock(ListDocumentBlockRequest) returns (ListDocumentBlockResponse) {
+    option (google.api.http) = {
+      get: "/api/v1/document_blocks"
+    };
+  }
+
+  rpc CreateDocumentBlock(CreateDocumentBlockRequest) returns (CreateDocumentBlockResponse) {
+    option (google.api.http) = {
+      post: "/api/v1/document_blocks"
+    };
+  }
+
+  rpc DeleteDocumentBlock(DeleteDocumentBlockRequest) returns (DeleteDocumentBlockResponse) {
+    option (google.api.http) = {
+      delete: "/api/v1/document_blocks"
+    };
+  }
+
+  rpc UpdateDocumentBlock(UpdateDocumentBlockRequest) returns (UpdateDocumentBlockResponse) {
+    option (google.api.http) = {
+      put: "/api/v1/document_blocks"
+    };
+  }
+
 }
 
diff --git a/api/rag/rag.swagger.json b/api/rag/rag.swagger.json
index 74c9cab..f7833b8 100644
--- a/api/rag/rag.swagger.json
+++ b/api/rag/rag.swagger.json
@@ -16,6 +16,143 @@
     "application/json"
   ],
   "paths": {
+    "/api/v1/document_blocks": {
+      "get": {
+        "operationId": "RAGService_ListDocumentBlock",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/ListDocumentBlockResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "documentId",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "int64"
+          }
+        ],
+        "tags": [
+          "RAGService"
+        ]
+      },
+      "delete": {
+        "operationId": "RAGService_DeleteDocumentBlock",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/DeleteDocumentBlockResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "int64"
+          }
+        ],
+        "tags": [
+          "RAGService"
+        ]
+      },
+      "post": {
+        "operationId": "RAGService_CreateDocumentBlock",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/CreateDocumentBlockResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "documentId",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "int64"
+          },
+          {
+            "name": "order",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "int64"
+          },
+          {
+            "name": "content",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "RAGService"
+        ]
+      },
+      "put": {
+        "operationId": "RAGService_UpdateDocumentBlock",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/UpdateDocumentBlockResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "id",
+            "in": "query",
+            "required": false,
+            "type": "string",
+            "format": "int64"
+          },
+          {
+            "name": "content",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "RAGService"
+        ]
+      }
+    },
     "/api/v1/documents": {
       "get": {
         "operationId": "RAGService_ListDocument",
@@ -150,6 +287,14 @@
     }
   },
   "definitions": {
+    "CreateDocumentBlockResponse": {
+      "type": "object",
+      "properties": {
+        "documentBlock": {
+          "$ref": "#/definitions/DocumentBlock"
+        }
+      }
+    },
     "CreateDocumentResponse": {
       "type": "object",
       "properties": {
@@ -166,6 +311,9 @@
         }
       }
     },
+    "DeleteDocumentBlockResponse": {
+      "type": "object"
+    },
     "Document": {
       "type": "object",
       "properties": {
@@ -194,6 +342,28 @@
         }
       }
     },
+    "DocumentBlock": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "format": "int64"
+        },
+        "content": {
+          "type": "string"
+        },
+        "documentId": {
+          "type": "string",
+          "format": "int64"
+        },
+        "createdAt": {
+          "type": "string"
+        },
+        "updatedAt": {
+          "type": "string"
+        }
+      }
+    },
     "Library": {
       "type": "object",
       "properties": {
@@ -216,6 +386,18 @@
       },
       "title": "import \"google.golang.org/grpc/health/grpc_health_v1\";"
     },
+    "ListDocumentBlockResponse": {
+      "type": "object",
+      "properties": {
+        "documentBlocks": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "$ref": "#/definitions/DocumentBlock"
+          }
+        }
+      }
+    },
     "ListDocumentResponse": {
       "type": "object",
       "properties": {
@@ -240,6 +422,14 @@
         }
       }
     },
+    "UpdateDocumentBlockResponse": {
+      "type": "object",
+      "properties": {
+        "documentBlock": {
+          "$ref": "#/definitions/DocumentBlock"
+        }
+      }
+    },
     "protobufAny": {
       "type": "object",
       "properties": {
diff --git a/consts/auth.go b/consts/auth.go
index c634911..c516304 100644
--- a/consts/auth.go
+++ b/consts/auth.go
@@ -17,4 +17,6 @@ var (
 	ErrNotBearerType  = errors.New("不是 Bearer 类型")
 	ErrEmptyResponse  = errors.New("我们的服务器返回了空请求，可能某些环节出了问题")
 	ErrTokenError     = errors.New("token 类型错误")
+
+	ErrNotYourResource = errors.New("你不能修改这个资源，因为它不是你创建的。")
 )
diff --git a/consts/document.go b/consts/document.go
new file mode 100644
index 0000000..194ac02
--- /dev/null
+++ b/consts/document.go
@@ -0,0 +1,9 @@
+package consts
+
+import "errors"
+
+var (
+	ErrDocumentNotFound = errors.New("找不到该文档。")
+	ErrDocumentEmpty    = errors.New("文档内容为空。")
+	ErrDocumentInvalid  = errors.New("无效的文档。")
+)
diff --git a/consts/library.go b/consts/library.go
new file mode 100644
index 0000000..284017f
--- /dev/null
+++ b/consts/library.go
@@ -0,0 +1,7 @@
+package consts
+
+import "errors"
+
+var (
+	ErrLibraryNotFound = errors.New("未找到指定的资料库")
+)
diff --git a/consts/validate.go b/consts/validate.go
new file mode 100644
index 0000000..1a8411b
--- /dev/null
+++ b/consts/validate.go
@@ -0,0 +1,9 @@
+package consts
+
+import "errors"
+
+var (
+	ErrValidateNameMustBeNotEmpty = errors.New("名称不能为空")
+	ErrValidateNameTooLong        = errors.New("名称太长了")
+	ErrValidateNameTooShort       = errors.New("名称太短了")
+)
diff --git a/ent/schema/documentblock.go b/ent/schema/documentblock.go
index 8577bd6..128be9b 100644
--- a/ent/schema/documentblock.go
+++ b/ent/schema/documentblock.go
@@ -16,7 +16,6 @@ type DocumentBlock struct {
 // Fields of the DocumentBlock.
 func (DocumentBlock) Fields() []ent.Field {
 	return []ent.Field{
-		field.String("name"),
 		field.String("content"),
 		// order
 		field.Int64("order"),
@@ -38,6 +37,6 @@ func (DocumentBlock) Edges() []ent.Edge {
 
 func (DocumentBlock) Indexes() []ent.Index {
 	return []ent.Index{
-		index.Fields("name", "user_id", "order"),
+		index.Fields("user_id", "order"),
 	}
 }
diff --git a/internal/cmd/migrate.go b/internal/cmd/migrate.go
index db14c57..7f5f5e1 100644
--- a/internal/cmd/migrate.go
+++ b/internal/cmd/migrate.go
@@ -43,7 +43,7 @@ var migrateCommand = &cobra.Command{
 var genMigrateCommand = &cobra.Command{
 	Use:   "gen-migrate [name]",
 	Short: "新建 ent 迁移",
-	Long:  "从 internal/ent 中新建迁移。在这之前，需要运行 go generate ./internal/ent",
+	Long:  "从 internal/ent 中新建迁移。在这之前，需要运行 go generate ./ent",
 	Run: func(cmd *cobra.Command, args []string) {
 		generateMigration()
 	},
diff --git a/internal/logic/document.go b/internal/logic/document.go
index dc955de..3a8092b 100644
--- a/internal/logic/document.go
+++ b/internal/logic/document.go
@@ -2,9 +2,11 @@ package logic
 
 import (
 	"context"
-	"errors"
+	"leafdev.top/leaf/rag/consts"
 	"leafdev.top/leaf/rag/ent"
 	"leafdev.top/leaf/rag/ent/document"
+	"leafdev.top/leaf/rag/ent/documentblock"
+	"leafdev.top/leaf/rag/models"
 )
 
 type DocumentLogic struct {
@@ -17,41 +19,142 @@ func NewDocumentLogic() *DocumentLogic {
 	}
 }
 
-func (d DocumentLogic) ListDocument(ctx context.Context, libraryId int64) ([]*ent.Document, error) {
-	library, err := d.LibraryLogic.ExistsByUser(ctx, int(libraryId))
+func (d DocumentLogic) ListDocument(ctx context.Context, libraryId int) ([]*ent.Document, error) {
+	library, err := d.LibraryLogic.ExistsByUser(ctx, libraryId)
 
 	if err != nil {
 		return nil, err
 	}
 
 	if !library {
-		return nil, errors.New("我们在你的账户下找不到这个资料库")
+		return nil, consts.ErrLibraryNotFound
 	}
 
 	return orm.Document.Query().Where(
 		document.UserIDEQ(GetUserId(ctx)),
-		document.LibraryIDEQ(libraryId),
+		document.LibraryIDEQ(int64(libraryId)),
 	).All(ctx)
 }
 
-func (d DocumentLogic) CreateDocument(ctx context.Context, libraryId int64, name string) (*ent.Document, error) {
+func (d DocumentLogic) CreateDocument(ctx context.Context, libraryId int, name string) (*ent.Document, error) {
 	// 检查 Library 是否存在
-	exists, err := d.LibraryLogic.ExistsByUser(ctx, int(libraryId))
+	exists, err := d.LibraryLogic.ExistsByUser(ctx, libraryId)
 	if err != nil {
 		return nil, err
 	}
 
 	if !exists {
-		return nil, errors.New("library not exists")
+		return nil, consts.ErrLibraryNotFound
 	}
 
 	if name == "" {
-		return nil, errors.New("name cannot be empty")
+		return nil, consts.ErrValidateNameMustBeNotEmpty
 	}
 
 	return orm.Document.Create().
 		SetName(name).
 		SetUserID(GetUserId(ctx)).
-		SetLibraryID(libraryId).
+		SetLibraryID(int64(libraryId)).
 		Save(ctx)
 }
+
+func (d DocumentLogic) ExistsByUser(ctx context.Context, libraryId int) (bool, error) {
+	return orm.Document.Query().Where(
+		document.UserIDEQ(GetUserId(ctx)),
+		document.LibraryIDEQ(int64(libraryId)),
+	).Exist(ctx)
+}
+
+func (d DocumentLogic) CreateDocumentBlock(ctx context.Context, documentId int, createDocumentModel *models.CreateDocumentBlock) (*ent.DocumentBlock, error) {
+	// 检查 Document 是否存在
+	exists, err := d.ExistsByUser(ctx, int(documentId))
+	if err != nil {
+		return nil, err
+	}
+
+	if !exists {
+		return nil, consts.ErrDocumentNotFound
+	}
+
+	return orm.DocumentBlock.Create().
+		SetOrder(createDocumentModel.Order).
+		SetDocumentID(int64(documentId)).
+		SetUserID(GetUserId(ctx)).
+		SetContent(createDocumentModel.Content).
+		Save(ctx)
+}
+
+func (d DocumentLogic) ListDocumentBlock(ctx context.Context, documentId int) ([]*ent.DocumentBlock, error) {
+	exists, err := d.ExistsByUser(ctx, documentId)
+	if err != nil {
+		return nil, err
+	}
+
+	if !exists {
+		return nil, consts.ErrDocumentNotFound
+	}
+
+	blocks, err := orm.DocumentBlock.Query().Where(
+		documentblock.DocumentID(int64(documentId)),
+	).All(ctx)
+
+	return blocks, err
+
+}
+
+func (d DocumentLogic) UpdateDocumentBlock(ctx context.Context, documentId int, blockId int, content string) (*ent.DocumentBlock, error) {
+	exists, err := d.ExistsByUser(ctx, documentId)
+	if err != nil {
+		return nil, err
+	}
+
+	if !exists {
+		return nil, consts.ErrDocumentNotFound
+	}
+
+	block, err := d.GetBlockById(ctx, blockId)
+	if err != nil {
+		return nil, err
+	}
+
+	if block.DocumentID != int64(documentId) {
+		return nil, consts.ErrDocumentNotFound
+	}
+
+	if block.UserID != GetUserId(ctx) {
+		return nil, consts.ErrNotYourResource
+	}
+
+	block.Content = content
+	return block.Update().Save(ctx)
+}
+
+func (d DocumentLogic) DeleteDocumentBlockById(ctx context.Context, documentId int, blockId int) error {
+	exists, err := d.ExistsByUser(ctx, documentId)
+	if err != nil {
+		return err
+	}
+
+	if !exists {
+		return consts.ErrDocumentNotFound
+	}
+
+	_, err = orm.DocumentBlock.Delete().Where(
+		documentblock.DocumentIDEQ(int64(documentId)),
+		documentblock.IDEQ(blockId),
+	).Exec(ctx)
+
+	return err
+}
+
+func (d DocumentLogic) GetBlockById(ctx context.Context, documentBlockId int) (*ent.DocumentBlock, error) {
+	return orm.DocumentBlock.Query().Where(documentblock.IDEQ(documentBlockId)).First(ctx)
+}
+
+func (d DocumentLogic) BlockExistsById(ctx context.Context, id int) (bool, error) {
+	return orm.Document.Query().Where(document.ID(id)).Exist(ctx)
+}
+
+func (d DocumentLogic) Exists(ctx context.Context, id int) (bool, error) {
+	return orm.Document.Query().Where(document.ID(id)).Exist(ctx)
+}
diff --git a/internal/logic/library.go b/internal/logic/library.go
index c784e0d..38961f8 100644
--- a/internal/logic/library.go
+++ b/internal/logic/library.go
@@ -2,7 +2,7 @@ package logic
 
 import (
 	"context"
-	"errors"
+	"leafdev.top/leaf/rag/consts"
 	"leafdev.top/leaf/rag/ent"
 	"leafdev.top/leaf/rag/ent/library"
 	"leafdev.top/leaf/rag/internal/providers/helper"
@@ -27,7 +27,7 @@ func (l *LibraryLogic) ListLibrary(ctx context.Context, page int) ([]*ent.Librar
 func (l *LibraryLogic) CreateLibrary(ctx context.Context, name string) (*ent.Library, error) {
 	// name 不能为空
 	if name == "" {
-		return nil, errors.New("名称不能为空")
+		return nil, consts.ErrValidateNameMustBeNotEmpty
 	}
 
 	return orm.Library.Create().
diff --git a/internal/services/rag/documentService.go b/internal/services/rag/documentService.go
index 1c29fdf..799a5b3 100644
--- a/internal/services/rag/documentService.go
+++ b/internal/services/rag/documentService.go
@@ -4,10 +4,11 @@ import (
 	"context"
 	"github.com/mitchellh/mapstructure"
 	ragApi "leafdev.top/leaf/rag/api/rag"
+	"leafdev.top/leaf/rag/models"
 )
 
 func (Service) ListDocument(ctx context.Context, req *ragApi.ListDocumentRequest) (*ragApi.ListDocumentResponse, error) {
-	document, err := documentLogic.ListDocument(ctx, req.LibraryId)
+	document, err := documentLogic.ListDocument(ctx, int(req.LibraryId))
 	if err != nil {
 		return nil, err
 	}
@@ -29,7 +30,7 @@ func (Service) ListDocument(ctx context.Context, req *ragApi.ListDocumentRequest
 }
 
 func (Service) CreateDocument(ctx context.Context, req *ragApi.CreateDocumentRequest) (*ragApi.CreateDocumentResponse, error) {
-	document, err := documentLogic.CreateDocument(ctx, req.LibraryId, req.Name)
+	document, err := documentLogic.CreateDocument(ctx, int(req.LibraryId), req.Name)
 	if err != nil {
 		return nil, err
 	}
@@ -46,3 +47,44 @@ func (Service) CreateDocument(ctx context.Context, req *ragApi.CreateDocumentReq
 //func (Service) UpdateDocument(ctx context.Context, _ *ragApi.UpdateDocumentRequest) (*ragApi.UpdateDocumentResponse, error) {
 //	panic("implement me")
 //}
+
+//func (Service) DeleteDocument(ctx context.Context, _ *ragApi.DeleteDocumentRequest) (*ragApi.DeleteDocumentResponse, error) {
+//	panic("implement me")
+//}
+
+func (Service) CreateDocumentBlock(ctx context.Context, req *ragApi.CreateDocumentBlockRequest) (*ragApi.CreateDocumentBlockResponse, error) {
+
+	var createDB = &models.CreateDocumentBlock{
+		Order:   req.Order,
+		Content: req.Content,
+	}
+
+	documentBlock, err := documentLogic.CreateDocumentBlock(ctx, int(req.DocumentId), createDB)
+	if err != nil {
+		return nil, err
+	}
+
+	var documentBlockApiResponse = ragApi.CreateDocumentBlockResponse{
+		DocumentBlock: &ragApi.DocumentBlock{
+			Id:         int64(documentBlock.ID),
+			Content:    documentBlock.Content,
+			DocumentId: documentBlock.DocumentID,
+			CreatedAt:  documentBlock.CreatedAt.String(),
+			UpdatedAt:  documentBlock.UpdatedAt.String(),
+		},
+	}
+
+	return &documentBlockApiResponse, nil
+}
+
+func (Service) ListDocumentBlock(ctx context.Context, req *ragApi.ListDocumentBlockRequest) (*ragApi.ListDocumentBlockResponse, error) {
+	panic("implement me")
+}
+
+func (Service) UpdateDocumentBlock(ctx context.Context, req *ragApi.UpdateDocumentBlockRequest) (*ragApi.UpdateDocumentBlockResponse, error) {
+	panic("implement me")
+}
+
+func (Service) DeleteDocumentBlock(ctx context.Context, req *ragApi.DeleteDocumentBlockRequest) (*ragApi.DeleteDocumentBlockResponse, error) {
+	panic("implement me")
+}
diff --git a/models/document.go b/models/document.go
new file mode 100644
index 0000000..4303099
--- /dev/null
+++ b/models/document.go
@@ -0,0 +1,10 @@
+package models
+
+//type DocumentModels struct {
+//	CreateDocumentBlock CreateDocumentBlock
+//}
+
+type CreateDocumentBlock struct {
+	Order   int64  `json:"order"`
+	Content string `json:"content"`
+}