diff --git a/cmd/gf/internal/cmd/cmd_z_unit_gen_ctrl_test.go b/cmd/gf/internal/cmd/cmd_z_unit_gen_ctrl_test.go
index db2d8874b..cf77bc8df 100644
--- a/cmd/gf/internal/cmd/cmd_z_unit_gen_ctrl_test.go
+++ b/cmd/gf/internal/cmd/cmd_z_unit_gen_ctrl_test.go
@@ -307,3 +307,41 @@ func expectFilesContent(t *gtest.T, paths []string, expectPaths []string) {
 		t.Assert(val, expect)
 	}
 }
+
+// https://github.com/gogf/gf/issues/3569
+func Test_Gen_Ctrl_Comments_Issue3569(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		var (
+			ctrlPath  = gfile.Temp(guid.S())
+			apiFolder = gtest.DataPath("issue", "3569", "api")
+			in        = genctrl.CGenCtrlInput{
+				SrcFolder:     apiFolder,
+				DstFolder:     ctrlPath,
+				WatchFile:     "",
+				SdkPath:       "",
+				SdkStdVersion: false,
+				SdkNoV1:       false,
+				Clear:         false,
+				Merge:         true,
+			}
+		)
+
+		err := gutil.FillStructWithDefault(&in)
+		t.AssertNil(err)
+
+		err = gfile.Mkdir(ctrlPath)
+		t.AssertNil(err)
+		defer gfile.Remove(ctrlPath)
+
+		_, err = genctrl.CGenCtrl{}.Ctrl(ctx, in)
+		t.AssertNil(err)
+
+		//apiInterface file
+		var (
+			genApi       = apiFolder + filepath.FromSlash("/hello/hello.go")
+			genApiExpect = apiFolder + filepath.FromSlash("/hello/hello_expect.go")
+		)
+		defer gfile.Remove(genApi)
+		t.Assert(gfile.GetContents(genApi), gfile.GetContents(genApiExpect))
+	})
+}
diff --git a/cmd/gf/internal/cmd/testdata/issue/3569/api/hello/hello_expect.go b/cmd/gf/internal/cmd/testdata/issue/3569/api/hello/hello_expect.go
new file mode 100644
index 000000000..745910243
--- /dev/null
+++ b/cmd/gf/internal/cmd/testdata/issue/3569/api/hello/hello_expect.go
@@ -0,0 +1,15 @@
+// =================================================================================
+// Code generated and maintained by GoFrame CLI tool. DO NOT EDIT.
+// =================================================================================
+
+package hello
+
+import (
+	"context"
+
+	"github.com/gogf/gf/cmd/gf/v2/internal/cmd/testdata/issue/3569/api/hello/v1"
+)
+
+type IHelloV1 interface {
+	Hello(ctx context.Context, req *v1.HelloReq) (res *v1.HelloRes, err error)
+}
diff --git a/cmd/gf/internal/cmd/testdata/issue/3569/api/hello/v1/req.go b/cmd/gf/internal/cmd/testdata/issue/3569/api/hello/v1/req.go
new file mode 100644
index 000000000..97d74123f
--- /dev/null
+++ b/cmd/gf/internal/cmd/testdata/issue/3569/api/hello/v1/req.go
@@ -0,0 +1,24 @@
+package v1
+
+import "github.com/gogf/gf/v2/frame/g"
+
+type HelloReq struct {
+	g.Meta `path:"/hello" tags:"Hello" method:"get" summary:"api-Hello"`
+}
+type HelloRes struct {
+	g.Meta `mime:"text/html" example:"string"`
+}
+
+// type Hello2Req struct {
+//	g.Meta `path:"/hello2" tags:"Hello" method:"get" summary:"api-Hello2"`
+// }
+// type Hello2Res struct {
+//	g.Meta `mime:"text/html" example:"string"`
+// }
+
+//type Hello3Req struct {
+//	g.Meta   `path:"/hello3" tags:"Hello" method:"get" summary:"api-Hello3"`
+//	PodState consts.PodPhase
+//}
+//type Hello3Res struct {
+//}