diff --git a/api/verification/send.go b/api/verification/send.go
index c3e0219..8672474 100644
--- a/api/verification/send.go
+++ b/api/verification/send.go
@@ -61,7 +61,11 @@ func sendCode(x *vigo.X, req *SendRequest) (*SendResponse, error) {
 	}
 
 	// 检查每日发送次数限制
+	// 配置说明: 0=禁用验证码功能, -1=不限制, >0=限制次数
 	maxDaily, _ := models.GetSettingInt(models.SettingCodeMaxDailyCount)
+	if maxDaily == 0 {
+		return nil, vigo.ErrForbidden.WithString("verification code service is disabled")
+	}
 	if maxDaily > 0 {
 		startOfDay := time.Now().Truncate(24 * time.Hour)
 		var dailyCount int64