diff --git a/interfaces/inner_api/qos.h b/interfaces/inner_api/qos.h
index 76398502a7ff06a03824ab7ecf87f3aa7099136c..c74ff55564ea34531892d7b53e3d4900e2ce4931 100644
--- a/interfaces/inner_api/qos.h
+++ b/interfaces/inner_api/qos.h
@@ -19,7 +19,7 @@
 namespace OHOS {
 namespace QOS {
 enum class QosLevel {
-    QOS_BACKGROUND = 1,
+    QOS_BACKGROUND,
     QOS_UTILITY,
     QOS_DEFAULT,
     QOS_USER_INITIATED,
@@ -53,4 +53,4 @@ int ResetQosForOtherThread(int tid);
 } // namespace QOS
 } // namespace OHOS
 
-#endif // QOS_MANAGER_INTERFACES_INNER_API_QOS_H
\ No newline at end of file
+#endif // QOS_MANAGER_INTERFACES_INNER_API_QOS_H
diff --git a/services/include/qos_interface.h b/services/include/qos_interface.h
index ed731264c2c4b4ad5419caa9251edf79148ddb48..f32df50bd7d9a0d46162a6d1e4674894755d9f31 100644
--- a/services/include/qos_interface.h
+++ b/services/include/qos_interface.h
@@ -135,7 +135,7 @@ enum QosPolicyType {
 struct QosPolicyDatas {
     int policyType;
     unsigned int policyFlag;
-    struct QosPolicyData policys[NR_QOS + 1];
+    struct QosPolicyData policys[NR_QOS];
 };
 
 enum QosCtrlCmdid {
diff --git a/services/src/qos_policy.cpp b/services/src/qos_policy.cpp
index 1663d96bc2491e9d7d84db86833734e4168c9999..dccc335e28c6b40dbe8b6395207839faf035a695 100644
--- a/services/src/qos_policy.cpp
+++ b/services/src/qos_policy.cpp
@@ -28,7 +28,6 @@ static struct QosPolicyDatas g_defaultQosPolicy = {
         {0, 0, 0, 1024, 0},
         {0, 0, 0, 1024, 0},
         {0, 0, 0, 1024, 0},
-        {0, 0, 0, 1024, 0},
     }
 };
 
@@ -36,7 +35,6 @@ static struct QosPolicyDatas g_foregroundQosPolicy = {
     .policyType = QOS_POLICY_FRONT,
     .policyFlag = QOS_FLAG_ALL,
     .policys = {
-        {0, 0, 0, 1024, 0},
         {10, 10, 0, 200, 0},
         {5, 5, 0, 250, 0},
         {0, 0, 0, 1024, 0},
@@ -57,7 +55,6 @@ static struct QosPolicyDatas g_backgroundQosPolicy = {
     .policyType = QOS_POLICY_BACK,
     .policyFlag = QOS_FLAG_ALL & ~QOS_FLAG_RT,
     .policys = {
-        {0, 0, 0, 1024, 0},
         {15, 15, 0, 150, 0},
         {10, 10, 0, 200, 0},
         {5, 5, 0, 250, 0},
@@ -77,7 +74,6 @@ static struct QosPolicyDatas g_systemServerQosPolicy = {
     .policyType = QOS_POLICY_SYSTEM_SERVER,
     .policyFlag = QOS_FLAG_ALL,
     .policys = {
-        {0, 0, 0, 1024, 0},
         {10, 10, 0, 200, 0},
         {5, 5, 0, 250, 0},
         {0, 0, 0, 1024, 0},
@@ -98,7 +94,6 @@ static struct QosPolicyDatas g_focusQosPolicy = {
     .policyType = QOS_POLICY_FOCUS,
     .policyFlag = QOS_FLAG_ALL,
     .policys = {
-        {0, 0, 0, 1024, 0},
         {10, 10, 0, 200, 0},
         {5, 5, 0, 250, 0},
         {0, 0, 0, 1024, 0},
@@ -154,4 +149,4 @@ void QosPolicy::Init()
     CONCUR_LOGI("set qos policy finish");
 }
 }
-}
\ No newline at end of file
+}
diff --git a/test/unittest/phone/qos_interface_test.cpp b/test/unittest/phone/qos_interface_test.cpp
index bf4fa399aba003294ad61605cbd2fcb762fd7e1a..e45def569e6e62f9deb668d0e1037ac313b9c8de 100644
--- a/test/unittest/phone/qos_interface_test.cpp
+++ b/test/unittest/phone/qos_interface_test.cpp
@@ -247,7 +247,6 @@ static struct QosPolicyDatas g_defaultQosPolicy = {
         {0, 0, 0, 1024, 0},
         {0, 0, 0, 1024, 0},
         {0, 0, 0, 1024, 0},
-        {0, 0, 0, 1024, 0},
     }
 };
 
@@ -264,4 +263,4 @@ HWTEST_F(QosInterfaceTest, QosPolicyTest, TestSize.Level1)
 }
 }
 }
-}
\ No newline at end of file
+}