diff --git a/g/database/gdb/gdb_func.go b/g/database/gdb/gdb_func.go
index dc07c52a5..cc46a159a 100644
--- a/g/database/gdb/gdb_func.go
+++ b/g/database/gdb/gdb_func.go
@@ -13,6 +13,7 @@ import (
     "github.com/gogf/gf/g/os/glog"
     "github.com/gogf/gf/g/os/gtime"
     "github.com/gogf/gf/g/text/gregex"
+    "github.com/gogf/gf/g/text/gstr"
     "github.com/gogf/gf/g/util/gconv"
     _ "github.com/gogf/gf/third/github.com/go-sql-driver/mysql"
     "reflect"
@@ -44,7 +45,11 @@ func formatCondition(where interface{}, args []interface{}) (newWhere string, ne
                     case reflect.Array:
                         buffer.WriteString(k + " IN(?)")
                     default:
-                        buffer.WriteString(k + "=?")
+                        if gstr.Pos(k, "<") == -1 && gstr.Pos(k, ">") == -1 && gstr.Pos(k, "=") == -1 {
+                            buffer.WriteString(k + "=?")
+                        } else {
+                            buffer.WriteString(k + "?")
+                        }
                 }
                 // 当给定的Where参数为map/struct时，args参数必定为空，
                 // 考虑到后续还会对args做处理，特别是判断slice类型，这里直接给args赋值。
diff --git a/g/database/gdb/gdb_unit_model_test.go b/g/database/gdb/gdb_unit_model_test.go
index f1a94084d..cd667ad6f 100644
--- a/g/database/gdb/gdb_unit_model_test.go
+++ b/g/database/gdb/gdb_unit_model_test.go
@@ -434,6 +434,14 @@ func TestModel_Where(t *testing.T) {
         }
         gtest.Assert(result["id"].Int(), 3)
     })
+    // map key operator
+    gtest.Case(t, func() {
+        result, err := db.Table("user").Where(g.Map{"id>" : 1, "id<" : 3}).One()
+        if err != nil {
+            gtest.Fatal(err)
+        }
+        gtest.Assert(result["id"].Int(), 2)
+    })
     // struct
     gtest.Case(t, func() {
         type User struct {
@@ -454,7 +462,7 @@ func TestModel_Where(t *testing.T) {
     })
     // slice single
     gtest.Case(t, func() {
-        result, err := db.Table("user").Where("id IN(?)", g.Slice{1,3}).OrderBy("id ASC").All()
+        result, err := db.Table("user").Where("id IN(?)", g.Slice{1, 3}).OrderBy("id ASC").All()
         if err != nil {
             gtest.Fatal(err)
         }