diff --git a/internal/services/collection/collection.go b/internal/services/collection/collection.go
new file mode 100644
index 0000000..d264c29
--- /dev/null
+++ b/internal/services/collection/collection.go
@@ -0,0 +1,105 @@
+package collection
+
+import (
+	"context"
+
+	"leafdev.top/Leaf/leaf-library-3/internal/entity"
+	"leafdev.top/Leaf/leaf-library-3/internal/types/dto"
+	"leafdev.top/Leaf/leaf-library-3/internal/types/errs"
+)
+
+func (s *Service) Get(ctx context.Context, collectionId dto.EntityId) (*entity.Collection, error) {
+	exists, err := s.Exists(ctx, collectionId)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if !exists {
+		return nil, errs.ErrCollectionNotExists
+	}
+
+	return s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.Id.Eq(collectionId.Uint())).First()
+}
+
+func (s *Service) Exists(ctx context.Context, CollectionId dto.EntityId) (bool, error) {
+	num, err := s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.Id.Eq(CollectionId.Uint())).Count()
+
+	return num > 0, err
+}
+
+func (s *Service) List(ctx context.Context, workspaceId dto.EntityId) ([]*entity.Collection, error) {
+	return s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.WorkspaceId.Eq(workspaceId.Uint())).Find()
+}
+
+func (s *Service) Create(ctx context.Context, workspaceId dto.EntityId, name string) (*entity.Collection, error) {
+	var collection = &entity.Collection{
+		Name:        name,
+		WorkspaceId: workspaceId,
+	}
+
+	err := s.dao.WithContext(ctx).Collection.Create(collection)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return collection, nil
+}
+
+//
+//func (s *Service) AddMember(ctx context.Context, userId schema.UserId, CollectionEntity *entity.Collection) (*entity.CollectionMember, error) {
+//	memberExists, err := s.MemberExists(ctx, userId, CollectionEntity)
+//	if err != nil {
+//		return nil, err
+//	}
+//
+//	if memberExists {
+//		return nil, errs.ErrMemberAlreadyExists
+//	}
+//
+//	var CollectionMember = &entity.CollectionMember{
+//		UserId:      userId,
+//		CollectionId: CollectionEntity.Id,
+//	}
+//
+//	err = s.dao.WithContext(ctx).CollectionMember.Create(CollectionMember)
+//
+//	return CollectionMember, err
+//}
+//
+//func (s *Service) RemoveMember(ctx context.Context, userId schema.UserId, CollectionEntity *entity.Collection) error {
+//	memberExists, err := s.MemberExists(ctx, userId, CollectionEntity)
+//	if err != nil {
+//		return err
+//	}
+//
+//	if !memberExists {
+//		return errs.ErrMemberNotExists
+//	}
+//
+//	_, err = s.dao.WithContext(ctx).CollectionMember.
+//		Where(
+//			s.dao.CollectionMember.UserId.Eq(userId.String()),
+//			s.dao.CollectionMember.CollectionId.Eq(
+//				CollectionEntity.Id.Uint()),
+//		).
+//		Delete()
+//
+//	return err
+//}
+//
+//func (s *Service) MemberExists(ctx context.Context, userId schema.UserId, CollectionEntity *entity.Collection) (bool, error) {
+//	if num, err := s.dao.WithContext(ctx).CollectionMember.Where(s.dao.CollectionMember.UserId.Eq(userId.String()), s.dao.CollectionMember.CollectionId.Eq(CollectionEntity.Id.Uint())).Count(); err != nil {
+//		return false, err
+//	} else {
+//		return num > 0, nil
+//	}
+//}
+//
+//func (s *Service) DeleteCollection(ctx context.Context, CollectionId dto.EntityId) error {
+//	//	删除始终是一个复杂的工程，所以先标记为软删除
+//	_, err := s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.Id.Eq(CollectionId.Uint())).Delete()
+//
+//	return err
+//}
diff --git a/internal/services/collection/provider.go b/internal/services/collection/provider.go
new file mode 100644
index 0000000..3ad6fe7
--- /dev/null
+++ b/internal/services/collection/provider.go
@@ -0,0 +1,18 @@
+package collection
+
+import (
+	"leafdev.top/Leaf/leaf-library-3/internal/base/conf"
+	"leafdev.top/Leaf/leaf-library-3/internal/dao"
+)
+
+type Service struct {
+	config *conf.Config
+	dao    *dao.Query
+}
+
+func NewService(config *conf.Config, dao *dao.Query) *Service {
+	return &Service{
+		config,
+		dao,
+	}
+}
diff --git a/internal/services/document/collection.go b/internal/services/document/collection.go
new file mode 100644
index 0000000..d264c29
--- /dev/null
+++ b/internal/services/document/collection.go
@@ -0,0 +1,105 @@
+package collection
+
+import (
+	"context"
+
+	"leafdev.top/Leaf/leaf-library-3/internal/entity"
+	"leafdev.top/Leaf/leaf-library-3/internal/types/dto"
+	"leafdev.top/Leaf/leaf-library-3/internal/types/errs"
+)
+
+func (s *Service) Get(ctx context.Context, collectionId dto.EntityId) (*entity.Collection, error) {
+	exists, err := s.Exists(ctx, collectionId)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if !exists {
+		return nil, errs.ErrCollectionNotExists
+	}
+
+	return s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.Id.Eq(collectionId.Uint())).First()
+}
+
+func (s *Service) Exists(ctx context.Context, CollectionId dto.EntityId) (bool, error) {
+	num, err := s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.Id.Eq(CollectionId.Uint())).Count()
+
+	return num > 0, err
+}
+
+func (s *Service) List(ctx context.Context, workspaceId dto.EntityId) ([]*entity.Collection, error) {
+	return s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.WorkspaceId.Eq(workspaceId.Uint())).Find()
+}
+
+func (s *Service) Create(ctx context.Context, workspaceId dto.EntityId, name string) (*entity.Collection, error) {
+	var collection = &entity.Collection{
+		Name:        name,
+		WorkspaceId: workspaceId,
+	}
+
+	err := s.dao.WithContext(ctx).Collection.Create(collection)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return collection, nil
+}
+
+//
+//func (s *Service) AddMember(ctx context.Context, userId schema.UserId, CollectionEntity *entity.Collection) (*entity.CollectionMember, error) {
+//	memberExists, err := s.MemberExists(ctx, userId, CollectionEntity)
+//	if err != nil {
+//		return nil, err
+//	}
+//
+//	if memberExists {
+//		return nil, errs.ErrMemberAlreadyExists
+//	}
+//
+//	var CollectionMember = &entity.CollectionMember{
+//		UserId:      userId,
+//		CollectionId: CollectionEntity.Id,
+//	}
+//
+//	err = s.dao.WithContext(ctx).CollectionMember.Create(CollectionMember)
+//
+//	return CollectionMember, err
+//}
+//
+//func (s *Service) RemoveMember(ctx context.Context, userId schema.UserId, CollectionEntity *entity.Collection) error {
+//	memberExists, err := s.MemberExists(ctx, userId, CollectionEntity)
+//	if err != nil {
+//		return err
+//	}
+//
+//	if !memberExists {
+//		return errs.ErrMemberNotExists
+//	}
+//
+//	_, err = s.dao.WithContext(ctx).CollectionMember.
+//		Where(
+//			s.dao.CollectionMember.UserId.Eq(userId.String()),
+//			s.dao.CollectionMember.CollectionId.Eq(
+//				CollectionEntity.Id.Uint()),
+//		).
+//		Delete()
+//
+//	return err
+//}
+//
+//func (s *Service) MemberExists(ctx context.Context, userId schema.UserId, CollectionEntity *entity.Collection) (bool, error) {
+//	if num, err := s.dao.WithContext(ctx).CollectionMember.Where(s.dao.CollectionMember.UserId.Eq(userId.String()), s.dao.CollectionMember.CollectionId.Eq(CollectionEntity.Id.Uint())).Count(); err != nil {
+//		return false, err
+//	} else {
+//		return num > 0, nil
+//	}
+//}
+//
+//func (s *Service) DeleteCollection(ctx context.Context, CollectionId dto.EntityId) error {
+//	//	删除始终是一个复杂的工程，所以先标记为软删除
+//	_, err := s.dao.WithContext(ctx).Collection.Where(s.dao.Collection.Id.Eq(CollectionId.Uint())).Delete()
+//
+//	return err
+//}
diff --git a/internal/services/document/provider.go b/internal/services/document/provider.go
new file mode 100644
index 0000000..3ad6fe7
--- /dev/null
+++ b/internal/services/document/provider.go
@@ -0,0 +1,18 @@
+package collection
+
+import (
+	"leafdev.top/Leaf/leaf-library-3/internal/base/conf"
+	"leafdev.top/Leaf/leaf-library-3/internal/dao"
+)
+
+type Service struct {
+	config *conf.Config
+	dao    *dao.Query
+}
+
+func NewService(config *conf.Config, dao *dao.Query) *Service {
+	return &Service{
+		config,
+		dao,
+	}
+}
diff --git a/internal/services/workspace/provider.go b/internal/services/workspace/provider.go
new file mode 100644
index 0000000..23eb3f4
--- /dev/null
+++ b/internal/services/workspace/provider.go
@@ -0,0 +1,18 @@
+package workspace
+
+import (
+	"leafdev.top/Leaf/leaf-library-3/internal/base/conf"
+	"leafdev.top/Leaf/leaf-library-3/internal/dao"
+)
+
+type Service struct {
+	config *conf.Config
+	dao    *dao.Query
+}
+
+func NewService(config *conf.Config, dao *dao.Query) *Service {
+	return &Service{
+		config,
+		dao,
+	}
+}
diff --git a/internal/services/workspace/workspace.go b/internal/services/workspace/workspace.go
new file mode 100644
index 0000000..2abfd91
--- /dev/null
+++ b/internal/services/workspace/workspace.go
@@ -0,0 +1,111 @@
+package workspace
+
+import (
+	"context"
+
+	"leafdev.top/Leaf/leaf-library-3/internal/entity"
+	"leafdev.top/Leaf/leaf-library-3/internal/types/dto"
+	"leafdev.top/Leaf/leaf-library-3/internal/types/errs"
+	"leafdev.top/Leaf/leaf-library-3/internal/types/user"
+)
+
+func (s *Service) Get(ctx context.Context, workspaceId dto.EntityId) (*entity.Workspace, error) {
+	exists, err := s.Exists(ctx, workspaceId)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if !exists {
+		return nil, errs.ErrWorkspaceNotExists
+	}
+
+	return s.dao.WithContext(ctx).Workspace.Where(s.dao.Workspace.Id.Eq(workspaceId.Uint())).First()
+}
+
+func (s *Service) Exists(ctx context.Context, workspaceId dto.EntityId) (bool, error) {
+	num, err := s.dao.WithContext(ctx).Workspace.Where(s.dao.Workspace.Id.Eq(workspaceId.Uint())).Count()
+
+	return num > 0, err
+}
+
+func (s *Service) List(ctx context.Context, userId user.Id) ([]*entity.Workspace, error) {
+	return s.dao.WithContext(ctx).Workspace.Where(s.dao.Workspace.UserId.Eq(userId.String())).Find()
+}
+
+func (s *Service) Create(ctx context.Context, userId user.Id, name string) (*entity.Workspace, error) {
+	var workspace = &entity.Workspace{
+		Name:   name,
+		UserId: userId,
+	}
+
+	err := s.dao.WithContext(ctx).Workspace.Create(workspace)
+
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = s.AddMember(ctx, userId, workspace)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return workspace, nil
+}
+
+func (s *Service) AddMember(ctx context.Context, userId user.Id, workspaceEntity *entity.Workspace) (*entity.WorkspaceMember, error) {
+	memberExists, err := s.MemberExists(ctx, userId, workspaceEntity)
+	if err != nil {
+		return nil, err
+	}
+
+	if memberExists {
+		return nil, errs.ErrMemberAlreadyExists
+	}
+
+	var workspaceMember = &entity.WorkspaceMember{
+		UserId:      userId,
+		WorkspaceId: workspaceEntity.Id,
+	}
+
+	err = s.dao.WithContext(ctx).WorkspaceMember.Create(workspaceMember)
+
+	return workspaceMember, err
+}
+
+func (s *Service) RemoveMember(ctx context.Context, userId user.Id, workspaceEntity *entity.Workspace) error {
+	memberExists, err := s.MemberExists(ctx, userId, workspaceEntity)
+	if err != nil {
+		return err
+	}
+
+	if !memberExists {
+		return errs.ErrMemberNotExists
+	}
+
+	_, err = s.dao.WithContext(ctx).WorkspaceMember.
+		Where(
+			s.dao.WorkspaceMember.UserId.Eq(userId.String()),
+			s.dao.WorkspaceMember.WorkspaceId.Eq(
+				workspaceEntity.Id.Uint()),
+		).
+		Delete()
+
+	return err
+}
+
+func (s *Service) MemberExists(ctx context.Context, userId user.Id, workspaceEntity *entity.Workspace) (bool, error) {
+	if num, err := s.dao.WithContext(ctx).WorkspaceMember.Where(s.dao.WorkspaceMember.UserId.Eq(userId.String()), s.dao.WorkspaceMember.WorkspaceId.Eq(workspaceEntity.Id.Uint())).Count(); err != nil {
+		return false, err
+	} else {
+		return num > 0, nil
+	}
+}
+
+func (s *Service) DeleteWorkspace(ctx context.Context, workspaceId dto.EntityId) error {
+	//	删除始终是一个复杂的工程，所以先标记为软删除
+	_, err := s.dao.WithContext(ctx).Workspace.Where(s.dao.Workspace.Id.Eq(workspaceId.Uint())).Delete()
+
+	return err
+}
diff --git a/internal/types/errs/collection.go b/internal/types/errs/collection.go
new file mode 100644
index 0000000..eb93509
--- /dev/null
+++ b/internal/types/errs/collection.go
@@ -0,0 +1,7 @@
+package errs
+
+import "errors"
+
+var (
+	ErrCollectionNotExists = errors.New("collection not exists")
+)
diff --git a/internal/types/errs/workspace.go b/internal/types/errs/workspace.go
new file mode 100644
index 0000000..e13c171
--- /dev/null
+++ b/internal/types/errs/workspace.go
@@ -0,0 +1,9 @@
+package errs
+
+import "errors"
+
+var (
+	ErrWorkspaceNotExists  = errors.New("workspace not exists")
+	ErrMemberAlreadyExists = errors.New("member already exists")
+	ErrMemberNotExists     = errors.New("member not exists")
+)