diff --git a/app/main/api/internal/handler/auth/sendsmshandler.go b/app/main/api/internal/handler/auth/sendsmshandler.go
index 313fc7c..cca2b94 100644
--- a/app/main/api/internal/handler/auth/sendsmshandler.go
+++ b/app/main/api/internal/handler/auth/sendsmshandler.go
@@ -1,12 +1,14 @@
 package auth
 
 import (
+	"context"
 	"net/http"
 
 	"tydata-server/app/main/api/internal/logic/auth"
 	"tydata-server/app/main/api/internal/svc"
 	"tydata-server/app/main/api/internal/types"
 	"tydata-server/common/result"
+	"tydata-server/pkg/captcha"
 	"tydata-server/pkg/lzkit/validator"
 
 	"github.com/zeromicro/go-zero/rest/httpx"
@@ -23,7 +25,9 @@ func SendSmsHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
 			result.ParamValidateErrorResult(r, w, err)
 			return
 		}
-		l := auth.NewSendSmsLogic(r.Context(), svcCtx)
+		// 将 request 注入 context，供 captcha 包判断微信等环境时跳过图形验证
+		ctx := context.WithValue(r.Context(), captcha.HTTPRequestContextKey, r)
+		l := auth.NewSendSmsLogic(ctx, svcCtx)
 		err := l.SendSms(&req)
 		result.HttpResult(r, w, nil, err)
 	}
diff --git a/app/main/api/internal/logic/auth/sendsmslogic.go b/app/main/api/internal/logic/auth/sendsmslogic.go
index 1d72c3b..645b8d3 100644
--- a/app/main/api/internal/logic/auth/sendsmslogic.go
+++ b/app/main/api/internal/logic/auth/sendsmslogic.go
@@ -37,12 +37,12 @@ func NewSendSmsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *SendSmsLo
 
 func (l *SendSmsLogic) SendSms(req *types.SendSmsReq) error {
 	cfg := l.svcCtx.Config.Captcha
-	if err := captcha.Verify(captcha.Config{
+	if err := captcha.VerifyWithRequest(captcha.Config{
 		AccessKeyID:     cfg.AccessKeyID,
 		AccessKeySecret: cfg.AccessKeySecret,
 		EndpointURL:     cfg.EndpointURL,
 		SceneID:         cfg.SceneID,
-	}, req.CaptchaVerifyParam); err != nil {
+	}, req.CaptchaVerifyParam, l.ctx); err != nil {
 		return err
 	}
 	// 默认action类型：当未传入时，默认为login，便于小程序环境兼容
diff --git a/pkg/captcha/aliyun.go b/pkg/captcha/aliyun.go
index d338d9d..e1742b4 100644
--- a/pkg/captcha/aliyun.go
+++ b/pkg/captcha/aliyun.go
@@ -1,7 +1,10 @@
 package captcha
 
 import (
+	"context"
+	"net/http"
 	"os"
+	"strings"
 
 	"tydata-server/common/xerr"
 
@@ -11,6 +14,21 @@ import (
 	"github.com/pkg/errors"
 )
 
+// contextKey 用于在 context 中存储 *http.Request，供 VerifyWithRequest 判断微信等环境
+type contextKey struct{}
+
+// HTTPRequestContextKey 为 context 中 http.Request 的 key，handler 可将 r 注入后传入 logic
+var HTTPRequestContextKey = &contextKey{}
+
+// isWeChatClient 根据 User-Agent 判断是否为微信内置浏览器/小程序环境（此类环境可不传 captchaVerifyParam，默认通过）
+func isWeChatClient(r *http.Request) bool {
+	if r == nil {
+		return false
+	}
+	ua := strings.ToLower(r.Header.Get("User-Agent"))
+	return strings.Contains(ua, "micromessenger") || strings.Contains(ua, "miniprogram")
+}
+
 type Config struct {
 	AccessKeyID     string
 	AccessKeySecret string
@@ -18,13 +36,24 @@ type Config struct {
 	SceneID         string
 }
 
+// VerifyWithRequest 在 Verify 基础上支持按请求头判断：微信/小程序环境下可不传 captchaVerifyParam，默认通过。
+// 若 ctx 中带有 HTTPRequestContextKey 的 *http.Request，且 User-Agent 为微信环境，则不再校验 captchaVerifyParam。
+func VerifyWithRequest(cfg Config, captchaVerifyParam string, ctx context.Context) error {
+	if ctx != nil {
+		if req, ok := ctx.Value(HTTPRequestContextKey).(*http.Request); ok && isWeChatClient(req) {
+			return nil
+		}
+	}
+	return Verify(cfg, captchaVerifyParam)
+}
+
 func Verify(cfg Config, captchaVerifyParam string) error {
 	if os.Getenv("ENV") == "development" {
 		return nil
 	}
-	// captchaVerifyParam 为可选入参，未传入时默认验证通过（兼容未做防滑拼图的页面）
+
 	if captchaVerifyParam == "" {
-		return nil
+		return errors.Wrapf(xerr.NewErrMsg("图形验证码校验失败，captchaVerifyParam 不能为空"), "empty captchaVerifyParam")
 	}
 
 	clientCfg := &openapi.Config{