diff --git a/backend/internal/handler/auth_handler.go b/backend/internal/handler/auth_handler.go
index ca3a5a77..dc68a466 100644
--- a/backend/internal/handler/auth_handler.go
+++ b/backend/internal/handler/auth_handler.go
@@ -719,7 +719,7 @@ func (h *AuthHandler) RevokeAllSessions(c *gin.Context) {
 		return
 	}
 
-	if err := h.authService.RevokeAllUserSessions(c.Request.Context(), subject.UserID); err != nil {
+	if err := h.authService.RevokeAllUserTokens(c.Request.Context(), subject.UserID); err != nil {
 		slog.Error("failed to revoke all sessions", "user_id", subject.UserID, "error", err)
 		response.InternalError(c, "Failed to revoke sessions")
 		return
diff --git a/backend/internal/handler/auth_session_revocation_test.go b/backend/internal/handler/auth_session_revocation_test.go
new file mode 100644
index 00000000..1924cb81
--- /dev/null
+++ b/backend/internal/handler/auth_session_revocation_test.go
@@ -0,0 +1,61 @@
+//go:build unit
+
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	middleware2 "github.com/Wei-Shaw/sub2api/internal/server/middleware"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAuthHandlerRevokeAllSessionsInvalidatesAccessTokens(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+
+	repo := &userHandlerRepoStub{
+		user: &service.User{
+			ID:           29,
+			Email:        "session@example.com",
+			Username:     "session-user",
+			Role:         service.RoleUser,
+			Status:       service.StatusActive,
+			TokenVersion: 7,
+		},
+	}
+	refreshTokenCache := &userHandlerRefreshTokenCacheStub{}
+	cfg := &config.Config{
+		JWT: config.JWTConfig{
+			Secret:     "test-secret",
+			ExpireHour: 1,
+		},
+	}
+	authService := service.NewAuthService(nil, repo, nil, refreshTokenCache, cfg, nil, nil, nil, nil, nil, nil)
+	handler := &AuthHandler{authService: authService}
+
+	recorder := httptest.NewRecorder()
+	c, _ := gin.CreateTestContext(recorder)
+	c.Request = httptest.NewRequest(http.MethodPost, "/api/v1/auth/revoke-all-sessions", nil)
+	c.Set(string(middleware2.ContextKeyUser), middleware2.AuthSubject{UserID: 29})
+
+	handler.RevokeAllSessions(c)
+
+	require.Equal(t, http.StatusOK, recorder.Code)
+	require.Equal(t, []int64{29}, refreshTokenCache.revokedUserIDs)
+	require.Equal(t, int64(8), repo.user.TokenVersion)
+
+	var resp struct {
+		Code int `json:"code"`
+		Data struct {
+			Message string `json:"message"`
+		} `json:"data"`
+	}
+	require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &resp))
+	require.Equal(t, 0, resp.Code)
+	require.Equal(t, "All sessions have been revoked. Please log in again.", resp.Data.Message)
+}
diff --git a/backend/internal/handler/auth_wechat_oauth_test.go b/backend/internal/handler/auth_wechat_oauth_test.go
index b8bd21ce..d303bd42 100644
--- a/backend/internal/handler/auth_wechat_oauth_test.go
+++ b/backend/internal/handler/auth_wechat_oauth_test.go
@@ -1346,18 +1346,6 @@ func newWeChatOAuthTestHandlerWithSettings(t *testing.T, invitationEnabled bool,
 	}, client
 }
 
-func assertOAuthRedirectError(t *testing.T, location string, errorCode string, errorMessage string) {
-	t.Helper()
-
-	parsed, err := url.Parse(location)
-	require.NoError(t, err)
-
-	fragment, err := url.ParseQuery(parsed.Fragment)
-	require.NoError(t, err)
-	require.Equal(t, errorCode, fragment.Get("error"))
-	require.Equal(t, errorMessage, fragment.Get("error_message"))
-}
-
 type wechatOAuthSettingRepoStub struct {
 	values map[string]string
 }
diff --git a/backend/internal/handler/user_handler.go b/backend/internal/handler/user_handler.go
index 80dcc5ce..867d8c9e 100644
--- a/backend/internal/handler/user_handler.go
+++ b/backend/internal/handler/user_handler.go
@@ -259,7 +259,7 @@ func (h *UserHandler) UnbindIdentity(c *gin.Context) {
 		return
 	}
 	if h.authService != nil {
-		if err := h.authService.RevokeAllUserSessions(c.Request.Context(), subject.UserID); err != nil {
+		if err := h.authService.RevokeAllUserTokens(c.Request.Context(), subject.UserID); err != nil {
 			response.ErrorFrom(c, err)
 			return
 		}
diff --git a/backend/internal/handler/user_handler_test.go b/backend/internal/handler/user_handler_test.go
index 87e168c0..c212603b 100644
--- a/backend/internal/handler/user_handler_test.go
+++ b/backend/internal/handler/user_handler_test.go
@@ -593,11 +593,12 @@ func TestUserHandlerUnbindIdentityRevokesAllUserSessionsWhenAuthServiceConfigure
 
 	repo := &userHandlerRepoStub{
 		user: &service.User{
-			ID:       23,
-			Email:    "identity@example.com",
-			Username: "identity-user",
-			Role:     service.RoleUser,
-			Status:   service.StatusActive,
+			ID:           23,
+			Email:        "identity@example.com",
+			Username:     "identity-user",
+			Role:         service.RoleUser,
+			Status:       service.StatusActive,
+			TokenVersion: 4,
 		},
 		identities: []service.UserAuthIdentityRecord{
 			{
@@ -632,6 +633,7 @@ func TestUserHandlerUnbindIdentityRevokesAllUserSessionsWhenAuthServiceConfigure
 
 	require.Equal(t, http.StatusOK, recorder.Code)
 	require.Equal(t, []int64{23}, refreshTokenCache.revokedUserIDs)
+	require.Equal(t, int64(5), repo.user.TokenVersion)
 }
 
 func TestUserHandlerBindEmailIdentityRejectsWrongCurrentPasswordForBoundEmail(t *testing.T) {
diff --git a/backend/internal/service/auth_service.go b/backend/internal/service/auth_service.go
index 6d61894b..efe08644 100644
--- a/backend/internal/service/auth_service.go
+++ b/backend/internal/service/auth_service.go
@@ -1467,6 +1467,26 @@ func (s *AuthService) RevokeAllUserSessions(ctx context.Context, userID int64) e
 	return s.refreshTokenCache.DeleteUserRefreshTokens(ctx, userID)
 }
 
+// RevokeAllUserTokens invalidates both stateless access tokens and refresh sessions.
+// Access/refresh token verification both depend on TokenVersion, so bumping it provides
+// immediate revocation even if refresh-token cache cleanup later fails.
+func (s *AuthService) RevokeAllUserTokens(ctx context.Context, userID int64) error {
+	user, err := s.userRepo.GetByID(ctx, userID)
+	if err != nil {
+		return fmt.Errorf("get user: %w", err)
+	}
+
+	user.TokenVersion++
+	if err := s.userRepo.Update(ctx, user); err != nil {
+		return fmt.Errorf("update user: %w", err)
+	}
+
+	if err := s.RevokeAllUserSessions(ctx, userID); err != nil {
+		logger.LegacyPrintf("service.auth", "[Auth] Failed to revoke refresh sessions after token invalidation for user %d: %v", userID, err)
+	}
+	return nil
+}
+
 // hashToken 计算Token的SHA256哈希
 func hashToken(token string) string {
 	hash := sha256.Sum256([]byte(token))