diff --git a/backend/cmd/server/main.go b/backend/cmd/server/main.go
index f5326946..11818e2c 100644
--- a/backend/cmd/server/main.go
+++ b/backend/cmd/server/main.go
@@ -253,11 +253,12 @@ func main() {
 	hydraService := service.NewHydraAdminService()
 	relyingPartyService := service.NewRelyingPartyService(hydraService, ketoService)
 	secretRepo := repository.NewClientSecretRepository(db)
+	consentRepo := repository.NewClientConsentRepository(db)
 
 	auditHandler := handler.NewAuditHandler(auditRepo)
-	authHandler := handler.NewAuthHandler(redisService, idpProvider, auditRepo, oathkeeperRepo, tenantService, ketoService, userRepo)
+	authHandler := handler.NewAuthHandler(redisService, idpProvider, auditRepo, oathkeeperRepo, tenantService, ketoService, userRepo, consentRepo)
 	adminHandler := handler.NewAdminHandler()
-	devHandler := handler.NewDevHandler(redisService, secretRepo)
+	devHandler := handler.NewDevHandler(redisService, secretRepo, consentRepo)
 	tenantHandler := handler.NewTenantHandler(db, tenantService)
 	relyingPartyHandler := handler.NewRelyingPartyHandler(relyingPartyService)
 	kratosAdminService := service.NewKratosAdminService()
diff --git a/backend/internal/handler/auth_handler.go b/backend/internal/handler/auth_handler.go
index 7359f48f..a38acc4b 100644
--- a/backend/internal/handler/auth_handler.go
+++ b/backend/internal/handler/auth_handler.go
@@ -89,6 +89,7 @@ type AuthHandler struct {
 	TenantService  service.TenantService
 	KetoService    service.KetoService
 	UserRepo       repository.UserRepository
+	ConsentRepo    repository.ClientConsentRepository
 }
 
 type signupState struct {
@@ -146,7 +147,7 @@ func checkPollInterval(redis *service.RedisService, key string, interval time.Du
 	return false, int(interval.Seconds())
 }
 
-func NewAuthHandler(redisService *service.RedisService, idpProvider domain.IdentityProvider, auditRepo domain.AuditRepository, oathkeeperRepo domain.OathkeeperLogRepository, tenantService service.TenantService, ketoService service.KetoService, userRepo repository.UserRepository) *AuthHandler {
+func NewAuthHandler(redisService *service.RedisService, idpProvider domain.IdentityProvider, auditRepo domain.AuditRepository, oathkeeperRepo domain.OathkeeperLogRepository, tenantService service.TenantService, ketoService service.KetoService, userRepo repository.UserRepository, consentRepo repository.ClientConsentRepository) *AuthHandler {
 	return &AuthHandler{
 		SmsService:     service.NewSmsService(),
 		EmailService:   service.NewEmailService(),
@@ -159,6 +160,7 @@ func NewAuthHandler(redisService *service.RedisService, idpProvider domain.Ident
 		TenantService:  tenantService,
 		KetoService:    ketoService,
 		UserRepo:       userRepo,
+		ConsentRepo:    consentRepo,
 	}
 }
 
@@ -3425,6 +3427,15 @@ func (h *AuthHandler) GetConsentRequest(c *fiber.Ctx) error {
 				slog.Error("failed to auto-accept hydra consent request", "error", err)
 				// 자동 승인 실패 시 일반 흐름으로 진행
 			} else {
+				// [New] Sync to local DB even on auto-accept to ensure data consistency
+				if h.ConsentRepo != nil {
+					consent := &domain.ClientConsent{
+						ClientID:      consentRequest.Client.ClientID,
+						Subject:       consentRequest.Subject,
+						GrantedScopes: consentRequest.RequestedScope,
+					}
+					_ = h.ConsentRepo.Upsert(c.Context(), consent)
+				}
 				slog.Info("Consent skipped and auto-accepted", "subject", consentRequest.Subject, "client", consentRequest.Client.ClientID)
 				return c.JSON(acceptResp)
 			}
@@ -3538,6 +3549,19 @@ func (h *AuthHandler) AcceptConsentRequest(c *fiber.Ctx) error {
 		return fiber.NewError(fiber.StatusInternalServerError, "Failed to accept consent request")
 	}
 
+	// [New] Sync to local DB for "List All Consents" feature
+	if h.ConsentRepo != nil {
+		consent := &domain.ClientConsent{
+			ClientID:      consentRequest.Client.ClientID,
+			Subject:       consentRequest.Subject,
+			GrantedScopes: consentRequest.RequestedScope,
+		}
+		if err := h.ConsentRepo.Upsert(c.Context(), consent); err != nil {
+			slog.Error("failed to sync consent to local DB", "error", err, "subject", consent.Subject, "client", consent.ClientID)
+			// Don't fail the whole request, but log it
+		}
+	}
+
 	if h.AuditRepo != nil {
 		detailsMap := map[string]interface{}{
 			"client_id":   consentRequest.Client.ClientID,