diff --git a/sofa-serverless-runtime/sofa-serverless-common/src/main/java/com/alipay/sofa/serverless/common/util/MultiBizProperties.java b/sofa-serverless-runtime/sofa-serverless-common/src/main/java/com/alipay/sofa/serverless/common/util/MultiBizProperties.java
index aab07a315..8fd9e1b9d 100644
--- a/sofa-serverless-runtime/sofa-serverless-common/src/main/java/com/alipay/sofa/serverless/common/util/MultiBizProperties.java
+++ b/sofa-serverless-runtime/sofa-serverless-common/src/main/java/com/alipay/sofa/serverless/common/util/MultiBizProperties.java
@@ -35,21 +35,25 @@
  */
 public class MultiBizProperties extends Properties {
 
-    private final String                  bizClassLoaderName;
+    private final String bizClassLoaderName;
 
-    private static final String           BIZ_CLASS_LOADER = "com.alipay.sofa.ark.container.service.classloader.BizClassLoader";
+    private static final String BIZ_CLASS_LOADER = "com.alipay.sofa.ark.container.service.classloader.BizClassLoader";
 
-    private Map<ClassLoader, Set<String>> modifiedKeysMap  = new HashMap<>();
+    private Map<ClassLoader, Set<String>> modifiedKeysMap = new HashMap<>();
 
-    private final Properties              baseProperties;
-    private Map<ClassLoader, Properties>  bizPropertiesMap;
+    private final Properties baseProperties;
+    private Map<ClassLoader, Properties> bizPropertiesMap;
 
-    public MultiBizProperties(String bizClassLoaderName, Properties baseProperties) {
+    private MultiBizProperties(String bizClassLoaderName, Properties baseProperties) {
         this.bizPropertiesMap = new HashMap<>();
         this.baseProperties = baseProperties;
         this.bizClassLoaderName = bizClassLoaderName;
     }
 
+    public MultiBizProperties(String bizClassLoaderName) {
+        this(bizClassLoaderName, new Properties());
+    }
+
     public synchronized Object setProperty(String key, String value) {
         addModifiedKey(key);
         return getWriteProperties().setProperty(key, value);
@@ -199,9 +203,10 @@ public synchronized void clear() {
     public synchronized Object clone() {
         MultiBizProperties mbp = new MultiBizProperties(bizClassLoaderName, baseProperties);
         mbp.bizPropertiesMap = new HashMap<>();
-        bizPropertiesMap.forEach((k, p) -> mbp.put(k, p.clone()));
+        bizPropertiesMap.forEach((k, p) -> mbp.bizPropertiesMap.put(k, (Properties) p.clone()));
         mbp.bizPropertiesMap.putAll(bizPropertiesMap);
-        mbp.modifiedKeysMap = modifiedKeysMap;
+        mbp.modifiedKeysMap = new HashMap<>();
+        modifiedKeysMap.forEach((k, s) -> mbp.modifiedKeysMap.put(k, new HashSet<>(s)));
         return mbp;
     }
 
@@ -435,7 +440,7 @@ private void addModifiedKeys(Collection<String> keys) {
     public static void initSystem(String bizClassLoaderName) {
         Properties properties = System.getProperties();
         MultiBizProperties multiBizProperties = new MultiBizProperties(bizClassLoaderName,
-            properties);
+                properties);
         System.setProperties(multiBizProperties);
     }
 
diff --git a/sofa-serverless-runtime/sofa-serverless-common/src/test/java/com/alipay/sofa/serverless/common/util/MultiBizPropertiesTest.java b/sofa-serverless-runtime/sofa-serverless-common/src/test/java/com/alipay/sofa/serverless/common/util/MultiBizPropertiesTest.java
index 02613c844..19f099a59 100644
--- a/sofa-serverless-runtime/sofa-serverless-common/src/test/java/com/alipay/sofa/serverless/common/util/MultiBizPropertiesTest.java
+++ b/sofa-serverless-runtime/sofa-serverless-common/src/test/java/com/alipay/sofa/serverless/common/util/MultiBizPropertiesTest.java
@@ -21,15 +21,19 @@
 import org.junit.Before;
 import org.junit.Test;
 
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
 import java.net.URL;
 import java.net.URLClassLoader;
+import java.util.Properties;
 
 public class MultiBizPropertiesTest {
-    private final String key1   = "test-key-1";
+    private final String key1 = "test-key-1";
     private final String value1 = "test-value-1";
     private final String value2 = "test-value-2";
 
-    private ClassLoader  baseClassLoader;
+    private ClassLoader baseClassLoader;
 
     @Before
     public void before() {
@@ -103,4 +107,54 @@ public void testGetAndClear() {
         Assert.assertEquals(value2, System.getProperty(key1));
     }
 
+    @Test
+    public void testClone() {
+        Properties properties = System.getProperties();
+        Properties other = (Properties) properties.clone();
+        Assert.assertEquals(properties, other);
+    }
+
+
+    @Test
+    public void testStoreAndLoad() throws IOException {
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        Properties properties = new MultiBizProperties(URLClassLoader.class.getName());
+        properties.put(key1, value1);
+        properties.putAll(System.getProperties());
+        int size = properties.size();
+        properties.store(out, "test store");
+        properties.clear();
+        Assert.assertEquals(properties.size(), 0);
+        ByteArrayInputStream input = new ByteArrayInputStream(out.toByteArray());
+        properties.load(input);
+        Assert.assertEquals(properties.size(), size);
+
+
+        out = new ByteArrayOutputStream();
+        properties.save(out, "test store");
+        properties.clear();
+        Assert.assertEquals(properties.size(), 0);
+        input = new ByteArrayInputStream(out.toByteArray());
+        properties.load(input);
+        Assert.assertEquals(properties.size(), size);
+
+
+        out = new ByteArrayOutputStream();
+        properties.storeToXML(out, "test store");
+        properties.clear();
+        Assert.assertEquals(properties.size(), 0);
+//        System.out.println(out);
+        input = new ByteArrayInputStream(out.toByteArray());
+        try {
+            properties.loadFromXML(input);
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+
+        Assert.assertEquals(properties.size(), size);
+
+        Assert.assertTrue(properties.containsKey(key1));
+        Assert.assertTrue(properties.contains(value1));
+    }
+
 }
\ No newline at end of file