diff --git a/internal/infrastructure/http/handlers/captcha_handler.go b/internal/infrastructure/http/handlers/captcha_handler.go
index 04d0f27..74c4e02 100644
--- a/internal/infrastructure/http/handlers/captcha_handler.go
+++ b/internal/infrastructure/http/handlers/captcha_handler.go
@@ -49,6 +49,11 @@ type EncryptedSceneIdReq struct {
 // @Failure 500 {object} map[string]interface{} "服务器内部错误"
 // @Router /api/v1/captcha/encryptedSceneId [post]
 func (h *CaptchaHandler) GetEncryptedSceneId(c *gin.Context) {
+	if !h.config.SMS.CaptchaEnabled {
+		h.response.BadRequest(c, "滑块验证码未启用")
+		return
+	}
+
 	expireSec := 3600
 	if c.Request.ContentLength > 0 {
 		var req EncryptedSceneIdReq