diff --git a/firstleg/src/main/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQueryScheduler.java b/firstleg/src/main/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQueryScheduler.java
index 22fee924f..940b24152 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQueryScheduler.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQueryScheduler.java
@@ -21,6 +21,7 @@ import java.util.UUID;
 @Component
 @ConditionalOnProperty(prefix = "baiyue.carrier-schedule.scheduler", name = "enabled", havingValue = "true")
 public class CarrierScheduleQueryScheduler {
+    static final String PROVIDER_TEMPORARILY_UNAVAILABLE = "轨迹供应商暂时不可用，请稍后重试或人工补录节点";
     private final CarrierScheduleQueryRepository repository;
     private final CarrierScheduleQueryService service;
     private final CarrierScheduleIntegrationClient integration;
@@ -96,7 +97,7 @@ public class CarrierScheduleQueryScheduler {
                 result.errorMessage());
         } catch (RuntimeException exception) {
             service.completeScheduledAttempt(candidate.getId(), "RETRYABLE_FAILURE", "PROVIDER_CALL_FAILED",
-                exception.getClass().getSimpleName());
+                PROVIDER_TEMPORARILY_UNAVAILABLE);
         }
     }
 }
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQuerySchedulerTest.java b/firstleg/src/test/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQuerySchedulerTest.java
index cee52bf2b..38eb11a66 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQuerySchedulerTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/portschedule/service/CarrierScheduleQuerySchedulerTest.java
@@ -158,6 +158,22 @@ class CarrierScheduleQuerySchedulerTest {
         verify(service).completeScheduledAttempt(1L, "RETRYABLE_FAILURE", "HTTP_503", "unavailable");
     }
 
+    @Test
+    void providerClientFailurePersistsBusinessSafeMessageInsteadOfFrameworkExceptionName() {
+        CarrierScheduleQueryRepository repository = mock(CarrierScheduleQueryRepository.class);
+        CarrierScheduleQueryService service = mock(CarrierScheduleQueryService.class);
+        CarrierScheduleIntegrationClient integration = mock(CarrierScheduleIntegrationClient.class);
+        CarrierScheduleQueryScheduler scheduler = new CarrierScheduleQueryScheduler(repository, service, integration);
+        CarrierScheduleQueryEntity task = task(1L);
+        when(repository.claimLease(anyLong(), anyString(), any(), any())).thenReturn(true);
+        when(integration.query(any(), any())).thenThrow(new RuntimeException("NoFallbackAvailableException"));
+
+        scheduler.execute(task, LocalDateTime.of(2026, 9, 9, 9, 0));
+
+        verify(service).completeScheduledAttempt(1L, "RETRYABLE_FAILURE", "PROVIDER_CALL_FAILED",
+            CarrierScheduleQueryScheduler.PROVIDER_TEMPORARILY_UNAVAILABLE);
+    }
+
     private static CarrierScheduleQueryEntity task(long id) {
         CarrierScheduleQueryEntity value = new CarrierScheduleQueryEntity(); value.setId(id); return value;
     }