diff --git a/plugin/kvm/src/main/java/org/zstack/kvm/KVMAgentCommands.java b/plugin/kvm/src/main/java/org/zstack/kvm/KVMAgentCommands.java
index 50fe295f2d..a5eb7a93a3 100755
--- a/plugin/kvm/src/main/java/org/zstack/kvm/KVMAgentCommands.java
+++ b/plugin/kvm/src/main/java/org/zstack/kvm/KVMAgentCommands.java
@@ -521,6 +521,7 @@ public static class HostFactResponse extends AgentResponse {
         @GrayVersion(value = "5.0.0")
         private VirtualizerInfoTO virtualizerInfo;
         private String iscsiInitiatorName;
+        private String cpuFeatureMd5;
 
         public String getOsDistribution() {
             return osDistribution;
@@ -782,6 +783,14 @@ public String getDeployMode() {
         public void setDeployMode(String deployMode) {
             this.deployMode = deployMode;
         }
+
+        public String getCpuFeatureMd5() {
+            return cpuFeatureMd5;
+        }
+
+        public void setCpuFeatureMd5(String cpuFeatureMd5) {
+            this.cpuFeatureMd5 = cpuFeatureMd5;
+        }
     }
 
     public static class HostCapacityCmd extends AgentCommand {
diff --git a/plugin/kvm/src/main/java/org/zstack/kvm/KVMHost.java b/plugin/kvm/src/main/java/org/zstack/kvm/KVMHost.java
index 558aded638..6a6bbcd382 100755
--- a/plugin/kvm/src/main/java/org/zstack/kvm/KVMHost.java
+++ b/plugin/kvm/src/main/java/org/zstack/kvm/KVMHost.java
@@ -6206,10 +6206,35 @@ private void saveKvmHostRelatedFacts(HostFactResponse ret) {
                 }
 
                 deleteCpuHistoryVOIfCpuModeNameChange(ret.getCpuModelName());
+
+                // check CPU feature MD5 change
+                String newMd5 = ret.getCpuFeatureMd5();
+                if (newMd5 != null) {
+                    String oldMd5 = KVMSystemTags.CPU_FEATURE_MD5.getTokenByResourceUuid(
+                        self.getUuid(), KVMSystemTags.CPU_FEATURE_MD5_TOKEN);
+
+                    if (oldMd5 != null && !oldMd5.equals(newMd5)) {
+                        deleteCpuHistoryVOOnCpuFeatureChange();
+                        logger.debug(String.format("host[uuid:%s] CPU feature changed, old MD5: %s, new MD5: %s, deleted related CpuFeaturesHistoryVO records",
+                            self.getUuid(), oldMd5, newMd5));
+                    }
+
+                    createTagWithoutNonValue(KVMSystemTags.CPU_FEATURE_MD5,
+                        KVMSystemTags.CPU_FEATURE_MD5_TOKEN, newMd5, true);
+                }
             }
         };
     }
 
+    private void deleteCpuHistoryVOOnCpuFeatureChange() {
+        SQL.New(CpuFeaturesHistoryVO.class)
+                .eq(CpuFeaturesHistoryVO_.srcHostUuid, self.getUuid())
+                .delete();
+        SQL.New(CpuFeaturesHistoryVO.class)
+                .eq(CpuFeaturesHistoryVO_.dstHostUuid, self.getUuid())
+                .delete();
+    }
+
     private void deleteCpuHistoryVOIfCpuModeNameChange(String cpuModelName){
         // delete all records that do not match the cpuModelName of the source physical machine
         SQL.New(CpuFeaturesHistoryVO.class)
diff --git a/plugin/kvm/src/main/java/org/zstack/kvm/KVMSystemTags.java b/plugin/kvm/src/main/java/org/zstack/kvm/KVMSystemTags.java
index d1dc3a495e..e5c14fb9d5 100755
--- a/plugin/kvm/src/main/java/org/zstack/kvm/KVMSystemTags.java
+++ b/plugin/kvm/src/main/java/org/zstack/kvm/KVMSystemTags.java
@@ -35,6 +35,9 @@ public class KVMSystemTags {
     public static final String CPU_MODEL_NAME_TOKEN = "name";
     public static PatternedSystemTag CPU_MODEL_NAME = new PatternedSystemTag(String.format("cpuModelName::{%s}", CPU_MODEL_NAME_TOKEN), HostVO.class);
 
+    public static final String CPU_FEATURE_MD5_TOKEN = "cpuFeatureMd5";
+    public static PatternedSystemTag CPU_FEATURE_MD5 = new PatternedSystemTag(String.format("cpuFeatureMd5::{%s}", CPU_FEATURE_MD5_TOKEN), HostVO.class);
+
     public static final String CHECK_CLUSTER_CPU_MODEL_TOKEN = "enable";
     public static PatternedSystemTag CHECK_CLUSTER_CPU_MODEL = new PatternedSystemTag(String.format("check::cluster::cpu::model::{%s}", CHECK_CLUSTER_CPU_MODEL_TOKEN), ClusterVO.class);