diff --git a/controller/setup.go b/controller/setup.go
index 44a7b3a73..3ae255e94 100644
--- a/controller/setup.go
+++ b/controller/setup.go
@@ -53,7 +53,7 @@ func GetSetup(c *gin.Context) {
 func PostSetup(c *gin.Context) {
 	// Check if setup is already completed
 	if constant.Setup {
-		c.JSON(400, gin.H{
+		c.JSON(200, gin.H{
 			"success": false,
 			"message": "系统已经初始化完成",
 		})
@@ -66,7 +66,7 @@ func PostSetup(c *gin.Context) {
 	var req SetupRequest
 	err := c.ShouldBindJSON(&req)
 	if err != nil {
-		c.JSON(400, gin.H{
+		c.JSON(200, gin.H{
 			"success": false,
 			"message": "请求参数有误",
 		})
@@ -77,7 +77,7 @@ func PostSetup(c *gin.Context) {
 	if !rootExists {
 		// Validate username length: max 12 characters to align with model.User validation
 		if len(req.Username) > 12 {
-			c.JSON(400, gin.H{
+			c.JSON(200, gin.H{
 				"success": false,
 				"message": "用户名长度不能超过12个字符",
 			})
@@ -85,7 +85,7 @@ func PostSetup(c *gin.Context) {
 		}
 		// Validate password
 		if req.Password != req.ConfirmPassword {
-			c.JSON(400, gin.H{
+			c.JSON(200, gin.H{
 				"success": false,
 				"message": "两次输入的密码不一致",
 			})
@@ -93,7 +93,7 @@ func PostSetup(c *gin.Context) {
 		}
 
 		if len(req.Password) < 8 {
-			c.JSON(400, gin.H{
+			c.JSON(200, gin.H{
 				"success": false,
 				"message": "密码长度至少为8个字符",
 			})
@@ -103,7 +103,7 @@ func PostSetup(c *gin.Context) {
 		// Create root user
 		hashedPassword, err := common.Password2Hash(req.Password)
 		if err != nil {
-			c.JSON(500, gin.H{
+			c.JSON(200, gin.H{
 				"success": false,
 				"message": "系统错误: " + err.Error(),
 			})
@@ -120,7 +120,7 @@ func PostSetup(c *gin.Context) {
 		}
 		err = model.DB.Create(&rootUser).Error
 		if err != nil {
-			c.JSON(500, gin.H{
+			c.JSON(200, gin.H{
 				"success": false,
 				"message": "创建管理员账号失败: " + err.Error(),
 			})
@@ -135,7 +135,7 @@ func PostSetup(c *gin.Context) {
 	// Save operation modes to database for persistence
 	err = model.UpdateOption("SelfUseModeEnabled", boolToString(req.SelfUseModeEnabled))
 	if err != nil {
-		c.JSON(500, gin.H{
+		c.JSON(200, gin.H{
 			"success": false,
 			"message": "保存自用模式设置失败: " + err.Error(),
 		})
@@ -144,7 +144,7 @@ func PostSetup(c *gin.Context) {
 
 	err = model.UpdateOption("DemoSiteEnabled", boolToString(req.DemoSiteEnabled))
 	if err != nil {
-		c.JSON(500, gin.H{
+		c.JSON(200, gin.H{
 			"success": false,
 			"message": "保存演示站点模式设置失败: " + err.Error(),
 		})
@@ -160,7 +160,7 @@ func PostSetup(c *gin.Context) {
 	}
 	err = model.DB.Create(&setup).Error
 	if err != nil {
-		c.JSON(500, gin.H{
+		c.JSON(200, gin.H{
 			"success": false,
 			"message": "系统初始化失败: " + err.Error(),
 		})