diff --git a/agents-flex-core/src/main/java/com/agentsflex/core/memory/DefaultContextMemory.java b/agents-flex-core/src/main/java/com/agentsflex/core/memory/DefaultContextMemory.java
new file mode 100644
index 0000000..801dd64
--- /dev/null
+++ b/agents-flex-core/src/main/java/com/agentsflex/core/memory/DefaultContextMemory.java
@@ -0,0 +1,74 @@
+/*
+ *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package com.agentsflex.core.memory;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class DefaultContextMemory implements ContextMemory {
+    @Override
+    public Object id() {
+        return UUID.randomUUID().toString();
+    }
+
+    protected Map<String, Object> context = new ConcurrentHashMap<>();
+
+    @Override
+    public Object get(String key) {
+        return context.get(key);
+    }
+
+    @Override
+    public Map<String, Object> getAll() {
+        return context;
+    }
+
+    @Override
+    public void put(String key, Object value) {
+        if (value == null) {
+            this.context.remove(key);
+        } else {
+            context.put(key, value);
+        }
+    }
+
+    @Override
+    public void putAll(Map<String, Object> map) {
+        if (map == null) {
+            return;
+        }
+        map.forEach((string, object) -> {
+            if (object == null) {
+                DefaultContextMemory.this.context.remove(string);
+            } else {
+                DefaultContextMemory.this.context.put(string, object);
+            }
+        });
+    }
+
+    @Override
+    public void remove(String key) {
+        this.context.remove(key);
+    }
+
+    @Override
+    public void clear() {
+        context.clear();
+    }
+
+
+}