diff --git a/go.mod b/go.mod
index 00b3165f..a5b46481 100644
--- a/go.mod
+++ b/go.mod
@@ -20,6 +20,12 @@ require (
 	gorm.io/gorm v1.25.2
 )
 
+require (
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
+	github.com/jackc/pgx/v5 v5.3.1 // indirect
+)
+
 require (
 	github.com/bytedance/sonic v1.9.2 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
@@ -55,4 +61,5 @@ require (
 	golang.org/x/text v0.11.0 // indirect
 	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	gorm.io/driver/postgres v1.5.2
 )
diff --git a/go.sum b/go.sum
index 7aa49931..f1b8e15c 100644
--- a/go.sum
+++ b/go.sum
@@ -86,6 +86,12 @@ github.com/gorilla/securecookie v1.1.1 h1:miw7JPhV+b/lAHSXz4qd/nN9jRiAFV5FwjeKyC
 github.com/gorilla/securecookie v1.1.1/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
 github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7FsgI=
 github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a h1:bbPeKD0xmW/Y25WS6cokEszi5g+S0QxI/d45PkRi7Nk=
+github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.3.1 h1:Fcr8QJ1ZeLi5zsPZqQeUZhNhxfkkKBOgJuYkJHoBOtU=
+github.com/jackc/pgx/v5 v5.3.1/go.mod h1:t3JDKnCBlYIc0ewLF0Q7B8MXmoIaBOZj/ic7iHozM/8=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
@@ -228,6 +234,8 @@ gorm.io/driver/mysql v1.4.3 h1:/JhWJhO2v17d8hjApTltKNADm7K7YI2ogkR7avJUL3k=
 gorm.io/driver/mysql v1.4.3/go.mod h1:sSIebwZAVPiT+27jK9HIwvsqOGKx3YMPmrA3mBJR10c=
 gorm.io/driver/mysql v1.5.1 h1:WUEH5VF9obL/lTtzjmML/5e6VfFR/788coz2uaVCAZw=
 gorm.io/driver/mysql v1.5.1/go.mod h1:Jo3Xu7mMhCyj8dlrb3WoCaRd1FhsVh+yMXb1jUInf5o=
+gorm.io/driver/postgres v1.5.2 h1:ytTDxxEv+MplXOfFe3Lzm7SjG09fcdb3Z/c056DTBx0=
+gorm.io/driver/postgres v1.5.2/go.mod h1:fmpX0m2I1PKuR7mKZiEluwrP3hbs+ps7JIGMUBpCgl8=
 gorm.io/driver/sqlite v1.4.3 h1:HBBcZSDnWi5BW3B3rwvVTc510KGkBkexlOg0QrmLUuU=
 gorm.io/driver/sqlite v1.4.3/go.mod h1:0Aq3iPO+v9ZKbcdiz8gLWRw5VOPcBOPUQJFLq5e2ecI=
 gorm.io/driver/sqlite v1.5.2 h1:TpQ+/dqCY4uCigCFyrfnrJnrW9zjpelWVoEVNy5qJkc=
diff --git a/model/main.go b/model/main.go
index 5bc5ce19..10f867c4 100644
--- a/model/main.go
+++ b/model/main.go
@@ -1,11 +1,13 @@
 package model
 
 import (
-	"gorm.io/driver/mysql"
-	"gorm.io/driver/sqlite"
-	"gorm.io/gorm"
 	"one-api/common"
 	"os"
+
+	"gorm.io/driver/mysql"
+	"gorm.io/driver/postgres"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
 )
 
 var DB *gorm.DB
@@ -40,7 +42,13 @@ func CountTable(tableName string) (num int64) {
 
 func InitDB() (err error) {
 	var db *gorm.DB
-	if os.Getenv("SQL_DSN") != "" {
+	if os.Getenv("POSTGRES_DSN") != "" {
+		// Use PostgreSQL
+		common.SysLog("using PostgreSQL as database")
+		db, err = gorm.Open(postgres.Open(os.Getenv("POSTGRES_DSN")), &gorm.Config{
+			PrepareStmt: true, // precompile SQL
+		})
+	} else if os.Getenv("SQL_DSN") != "" {
 		// Use MySQL
 		common.SysLog("using MySQL as database")
 		db, err = gorm.Open(mysql.Open(os.Getenv("SQL_DSN")), &gorm.Config{