diff --git a/framework/app-service/.olares/config/cluster/deploy/appservice_deploy.yaml b/framework/app-service/.olares/config/cluster/deploy/appservice_deploy.yaml
index a7733b0c9..07be0175e 100644
--- a/framework/app-service/.olares/config/cluster/deploy/appservice_deploy.yaml
+++ b/framework/app-service/.olares/config/cluster/deploy/appservice_deploy.yaml
@@ -402,6 +402,7 @@ spec:
     spec:
       serviceAccount: os-internal
       serviceAccountName: os-internal
+      priorityClassName: "system-cluster-critical"
       hostNetwork: true
       containers:
         - name: image-service
diff --git a/framework/files/.olares/config/cluster/deploy/files_deploy.yaml b/framework/files/.olares/config/cluster/deploy/files_deploy.yaml
index 829771395..b1aa84fe9 100644
--- a/framework/files/.olares/config/cluster/deploy/files_deploy.yaml
+++ b/framework/files/.olares/config/cluster/deploy/files_deploy.yaml
@@ -52,6 +52,7 @@ spec:
     spec:
       serviceAccount: os-internal
       serviceAccountName: os-internal
+      priorityClassName: "system-cluster-critical"
       securityContext:
         runAsUser: 0
         runAsNonRoot: false
diff --git a/framework/search3/.olares/config/cluster/deploy/search3_server_deploy.yaml b/framework/search3/.olares/config/cluster/deploy/search3_server_deploy.yaml
index c10ad66d8..6efb03c3c 100644
--- a/framework/search3/.olares/config/cluster/deploy/search3_server_deploy.yaml
+++ b/framework/search3/.olares/config/cluster/deploy/search3_server_deploy.yaml
@@ -198,6 +198,7 @@ spec:
     spec:
       serviceAccount: os-internal
       serviceAccountName: os-internal
+      priorityClassName: "system-cluster-critical"
       volumes:
         - name: userspace-dir
           hostPath:
@@ -288,6 +289,7 @@ spec:
         app: search3monitor
     spec:
       serviceAccountName: os-internal
+      priorityClassName: "system-cluster-critical"
       containers:
       - name: search3monitor
         image: beclab/search3monitor:v0.0.70
diff --git a/platform/tapr/.olares/config/cluster/deploy/middleware_deploy.yaml b/platform/tapr/.olares/config/cluster/deploy/middleware_deploy.yaml
index 2947d1025..20a46b173 100644
--- a/platform/tapr/.olares/config/cluster/deploy/middleware_deploy.yaml
+++ b/platform/tapr/.olares/config/cluster/deploy/middleware_deploy.yaml
@@ -41,6 +41,7 @@ spec:
       # terminationGracePeriodSeconds: 0
       serviceAccountName: os-internal
       serviceAccount: os-internal
+      priorityClassName: "system-cluster-critical"
       volumes:
       - name: dbdata-dir
         hostPath: