diff --git a/apps/node_man/periodic_tasks/sync_cmdb_host.py b/apps/node_man/periodic_tasks/sync_cmdb_host.py
index b08c12b57..e35a54943 100644
--- a/apps/node_man/periodic_tasks/sync_cmdb_host.py
+++ b/apps/node_man/periodic_tasks/sync_cmdb_host.py
@@ -491,7 +491,13 @@ def sync_cmdb_host(bk_biz_id=None, task_id=None):
     # 节点管理需要删除的host_id
     need_delete_host_ids = set(node_man_host_ids) - set(cc_bk_host_ids)
     if need_delete_host_ids:
-        models.Host.objects.filter(bk_host_id__in=need_delete_host_ids).delete()
+        proxy_host_ids: typing.Set[int] = set(
+            models.Host.objects.filter(
+                bk_host_id__in=need_delete_host_ids, node_type=constants.NodeType.PROXY
+            ).values_list("bk_host_id", flat=True)
+        )
+        need_delete_agent_host_ids = need_delete_host_ids - proxy_host_ids
+        models.Host.objects.filter(bk_host_id__in=need_delete_agent_host_ids).delete()
         models.IdentityData.objects.filter(bk_host_id__in=need_delete_host_ids).delete()
         if not LPUSH_AND_EXPIRE_FUNC:
             models.ProcessStatus.objects.filter(bk_host_id__in=need_delete_host_ids).delete()
@@ -566,6 +572,7 @@ def query_cmdb_and_handle_need_delete_host_ids(host_ids: typing.List[int], task_
         )
     )
     final_delete_host_ids = set(host_ids) - set(bk_host_ids_in_cmdb)
+    models.Host.objects.filter(bk_host_id__in=final_delete_host_ids).delete()
     models.ProcessStatus.objects.filter(bk_host_id__in=final_delete_host_ids).delete()
     logger.info(
         "[clear_final_delete_host_ids] task_id -> %s, final_delete_host_ids -> %s, num -> %s"
diff --git a/apps/node_man/tests/test_pericdic_tasks/test_sync_cmdb_host.py b/apps/node_man/tests/test_pericdic_tasks/test_sync_cmdb_host.py
index c9920c7e1..466ae1e8b 100644
--- a/apps/node_man/tests/test_pericdic_tasks/test_sync_cmdb_host.py
+++ b/apps/node_man/tests/test_pericdic_tasks/test_sync_cmdb_host.py
@@ -60,8 +60,8 @@ def test_sync_cmdb_host(self):
         )
         self.assertEqual(itf_results.sort(key=lambda t: t[0]), list(db_result).sort(key=lambda t: t[0]))
 
-        # 验证主机信息是否删除成功
-        self.assertEqual(Host.objects.filter(bk_host_id=-1).count(), 0)
+        # 验证主机信息是否删除成功/proxy主机信息先保留
+        self.assertEqual(Host.objects.filter(bk_host_id=-1).count(), 1)
 
 
 class TestClearNeedDeleteHostIds(CustomBaseTestCase):