diff --git a/contrib/drivers/pgsql/pgsql_do_insert.go b/contrib/drivers/pgsql/pgsql_do_insert.go
index 55e6f761c06..77af8180017 100644
--- a/contrib/drivers/pgsql/pgsql_do_insert.go
+++ b/contrib/drivers/pgsql/pgsql_do_insert.go
@@ -9,6 +9,7 @@ package pgsql
 import (
 	"context"
 	"database/sql"
+	"strings"
 
 	"github.com/gogf/gf/v2/database/gdb"
 	"github.com/gogf/gf/v2/errors/gcode"
@@ -39,8 +40,13 @@ func (d *Driver) DoInsert(
 			}
 			foundPrimaryKey := false
 			for _, conflictKey := range primaryKeys {
-				if _, ok := list[0][conflictKey]; ok {
-					foundPrimaryKey = true
+				for dataKey := range list[0] {
+					if strings.EqualFold(dataKey, conflictKey) {
+						foundPrimaryKey = true
+						break
+					}
+				}
+				if foundPrimaryKey {
 					break
 				}
 			}