diff --git a/mindspore/lite/build_lite.sh b/mindspore/lite/build_lite.sh
index be87708fd80..b6adc876475 100755
--- a/mindspore/lite/build_lite.sh
+++ b/mindspore/lite/build_lite.sh
@@ -73,6 +73,11 @@ build_lite_x86_64_jni_and_jar() {
     cp ./libmindspore-lite-jni.so ${LITE_JAVA_PATH}/java/linux_x86/libs/
     cp ./libmindspore-lite-jni.so ${LITE_JAVA_PATH}/native/libs/linux_x86/
     cp ./libmindspore-lite-jni.so ${BASEPATH}/output/tmp/${pkg_name}/runtime/lib/
+    if [[ "X$is_train" = "Xon" ]]; then
+        cp ./libmindspore-lite-train-jni.so ${LITE_JAVA_PATH}/java/linux_x86/libs/
+        cp ./libmindspore-lite-train-jni.so ${LITE_JAVA_PATH}/native/libs/linux_x86/
+        cp ./libmindspore-lite-train-jni.so ${BASEPATH}/output/tmp/${pkg_name}/runtime/lib/
+    fi
 
     cd ${LITE_JAVA_PATH}/java
     rm -rf gradle .gradle gradlew gradlew.bat
@@ -256,6 +261,10 @@ build_lite_arm64_and_jni() {
     fi
     cp ./libmindspore-lite-jni.so ${LITE_JAVA_PATH}/java/app/libs/arm64-v8a/
     cp ./libmindspore-lite-jni.so ${LITE_JAVA_PATH}/native/libs/arm64-v8a/
+    if [[ "X$is_train" = "Xon" ]]; then
+      cp ./libmindspore-lite-train-jni.so ${LITE_JAVA_PATH}/java/app/libs/arm64-v8a/
+      cp ./libmindspore-lite-train-jni.so ${LITE_JAVA_PATH}/native/libs/arm64-v8a/
+    fi
 }
 
 build_lite_arm32_and_jni() {
@@ -296,6 +305,10 @@ build_lite_arm32_and_jni() {
     fi
     cp ./libmindspore-lite-jni.so ${LITE_JAVA_PATH}/java/app/libs/armeabi-v7a/
     cp ./libmindspore-lite-jni.so ${LITE_JAVA_PATH}/native/libs/armeabi-v7a/
+    if [[ "X$is_train" = "Xon" ]]; then
+      cp ./libmindspore-lite-train-jni.so ${LITE_JAVA_PATH}/java/app/libs/armeabi-v7a/
+      cp ./libmindspore-lite-train-jni.so ${LITE_JAVA_PATH}/native/libs/armeabi-v7a/
+    fi
 }
 
 build_aar() {
diff --git a/mindspore/lite/examples/train_lenet_java/src/main/java/com/mindspore/lite/train_lenet/NetRunner.java b/mindspore/lite/examples/train_lenet_java/src/main/java/com/mindspore/lite/train_lenet/NetRunner.java
index cbe9b7eb225..971e0729f5d 100644
--- a/mindspore/lite/examples/train_lenet_java/src/main/java/com/mindspore/lite/train_lenet/NetRunner.java
+++ b/mindspore/lite/examples/train_lenet_java/src/main/java/com/mindspore/lite/train_lenet/NetRunner.java
@@ -18,6 +18,7 @@ package com.mindspore.lite.train_lenet;
 
 import com.mindspore.lite.MSTensor;
 import com.mindspore.lite.LiteSession;
+import com.mindspore.lite.TrainSession;
 import com.mindspore.lite.config.MSConfig;
 
 import java.nio.ByteBuffer;
@@ -48,7 +49,7 @@ public class NetRunner {
         msConfig.init(0, 2, 0, false);
         session = new LiteSession();
         System.out.println("Model path is " + modelPath);
-        session = session.createTrainSession(modelPath, msConfig, false);
+        session = TrainSession.createTrainSession(modelPath, msConfig, false);
         session.setupVirtualBatch(virtualBatch, 0.01f, 1.00f);
 
         List<MSTensor> inputs = session.getInputs();
diff --git a/mindspore/lite/java/java/app/src/main/java/com/mindspore/lite/LiteSession.java b/mindspore/lite/java/java/app/src/main/java/com/mindspore/lite/LiteSession.java
index 331da0954c7..7088b77eb4a 100644
--- a/mindspore/lite/java/java/app/src/main/java/com/mindspore/lite/LiteSession.java
+++ b/mindspore/lite/java/java/app/src/main/java/com/mindspore/lite/LiteSession.java
@@ -63,20 +63,14 @@ public class LiteSession {
         }
     }
 
-    public static LiteSession createTrainSession(String modelName, final MSConfig config, boolean trainMode) {
-        LiteSession liteSession = new LiteSession();
-        liteSession.sessionPtr = liteSession.createTrainSession(modelName, config.getMSConfigPtr(), trainMode, 0);
-        if (liteSession.sessionPtr == 0) {
-            return null;
-        } else {
-            return liteSession;
-        }
-    }
-
     public long getSessionPtr() {
         return sessionPtr;
     }
 
+   public void setSessionPtr(long sessionPtr) {
+        this.sessionPtr = sessionPtr;
+    }
+
     public void bindThread(boolean ifBind) {
         this.bindThread(this.sessionPtr, ifBind);
     }
@@ -204,8 +198,6 @@ public class LiteSession {
 
     private native long createSessionWithModel(MappedByteBuffer buffer, long msConfigPtr);
 
-    private native long createTrainSession(String filename, long msContextPtr, boolean trainMode, long msTrainCfgPtr);
-
     private native boolean compileGraph(long sessionPtr, long modelPtr);
 
     private native void bindThread(long sessionPtr, boolean ifBind);
diff --git a/mindspore/lite/java/java/app/src/main/java/com/mindspore/lite/TrainSession.java b/mindspore/lite/java/java/app/src/main/java/com/mindspore/lite/TrainSession.java
new file mode 100644
index 00000000000..13af2b4d74b
--- /dev/null
+++ b/mindspore/lite/java/java/app/src/main/java/com/mindspore/lite/TrainSession.java
@@ -0,0 +1,39 @@
+/**
+ * Copyright 2021 Huawei Technologies Co., Ltd
+ * <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.mindspore.lite;
+
+import com.mindspore.lite.LiteSession;
+import com.mindspore.lite.config.MSConfig;
+
+public class TrainSession {
+    static {
+        System.loadLibrary("mindspore-lite-train-jni");
+    }
+    public static LiteSession createTrainSession(String modelName, final MSConfig config, boolean trainMode) {
+        LiteSession liteSession = new LiteSession();
+        long sessionPtr = createTrainSession(modelName, config.getMSConfigPtr(), trainMode, 0);
+        if (sessionPtr == 0) {
+            return null;
+        } else {
+             liteSession.setSessionPtr(sessionPtr);
+            return liteSession;
+        }
+    }
+
+    private static native long createTrainSession(String fileName, long msContextPtr, boolean trainMode,
+                                                  long msTrainCfgPtr);
+}
diff --git a/mindspore/lite/java/java/fl_client/src/main/java/com/mindspore/flclient/model/SessionUtil.java b/mindspore/lite/java/java/fl_client/src/main/java/com/mindspore/flclient/model/SessionUtil.java
index 513b59d36ee..0b219096f40 100644
--- a/mindspore/lite/java/java/fl_client/src/main/java/com/mindspore/flclient/model/SessionUtil.java
+++ b/mindspore/lite/java/java/fl_client/src/main/java/com/mindspore/flclient/model/SessionUtil.java
@@ -18,6 +18,7 @@ package com.mindspore.flclient.model;
 
 import com.mindspore.flclient.Common;
 import com.mindspore.lite.LiteSession;
+import com.mindspore.lite.TrainSession;
 import com.mindspore.lite.MSTensor;
 import com.mindspore.lite.config.MSConfig;
 import mindspore.schema.FeatureMap;
@@ -84,7 +85,7 @@ public class SessionUtil {
         // arg 2: cpuBindMode:NO_BIND ->  0
         // arg 3: enable_fp16 -> false
         msConfig.init(0, 1, 0, false);
-        LiteSession trainSession = LiteSession.createTrainSession(modelPath, msConfig,false);
+        LiteSession trainSession = TrainSession.createTrainSession(modelPath, msConfig,false);
         if (trainSession == null) {
             logger.severe(Common.addTag("init session failed,please check model path:" + modelPath));
             return null;
diff --git a/mindspore/lite/java/java/linux_x86/src/main/java/com.mindspore.lite/LiteSession.java b/mindspore/lite/java/java/linux_x86/src/main/java/com.mindspore.lite/LiteSession.java
index a49e94078e9..859c021997e 100644
--- a/mindspore/lite/java/java/linux_x86/src/main/java/com.mindspore.lite/LiteSession.java
+++ b/mindspore/lite/java/java/linux_x86/src/main/java/com.mindspore.lite/LiteSession.java
@@ -63,20 +63,14 @@ public class LiteSession {
         }
     }
 
-    public static LiteSession createTrainSession(String modelName, final MSConfig config, boolean trainMode) {
-        LiteSession liteSession = new LiteSession();
-        liteSession.sessionPtr = liteSession.createTrainSession(modelName, config.getMSConfigPtr(), trainMode, 0);
-        if (liteSession.sessionPtr == 0) {
-            return null;
-        } else {
-            return liteSession;
-        }
-    }
-
     public long getSessionPtr() {
         return sessionPtr;
     }
 
+    public void setSessionPtr(long sessionPtr) {
+        this.sessionPtr = sessionPtr;
+    }
+
     public void bindThread(boolean ifBind) {
         this.bindThread(this.sessionPtr, ifBind);
     }
@@ -204,8 +198,6 @@ public class LiteSession {
 
     private native long createSessionWithModel(MappedByteBuffer buffer, long msConfigPtr);
 
-    private native long createTrainSession(String fileName, long msContextPtr, boolean trainMode, long msTrainCfgPtr);
-
     private native boolean compileGraph(long sessionPtr, long modelPtr);
 
     private native void bindThread(long sessionPtr, boolean ifBind);
diff --git a/mindspore/lite/java/java/linux_x86/src/main/java/com.mindspore.lite/TrainSession.java b/mindspore/lite/java/java/linux_x86/src/main/java/com.mindspore.lite/TrainSession.java
new file mode 100644
index 00000000000..13af2b4d74b
--- /dev/null
+++ b/mindspore/lite/java/java/linux_x86/src/main/java/com.mindspore.lite/TrainSession.java
@@ -0,0 +1,39 @@
+/**
+ * Copyright 2021 Huawei Technologies Co., Ltd
+ * <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.mindspore.lite;
+
+import com.mindspore.lite.LiteSession;
+import com.mindspore.lite.config.MSConfig;
+
+public class TrainSession {
+    static {
+        System.loadLibrary("mindspore-lite-train-jni");
+    }
+    public static LiteSession createTrainSession(String modelName, final MSConfig config, boolean trainMode) {
+        LiteSession liteSession = new LiteSession();
+        long sessionPtr = createTrainSession(modelName, config.getMSConfigPtr(), trainMode, 0);
+        if (sessionPtr == 0) {
+            return null;
+        } else {
+             liteSession.setSessionPtr(sessionPtr);
+            return liteSession;
+        }
+    }
+
+    private static native long createTrainSession(String fileName, long msContextPtr, boolean trainMode,
+                                                  long msTrainCfgPtr);
+}
diff --git a/mindspore/lite/java/native/CMakeLists.txt b/mindspore/lite/java/native/CMakeLists.txt
index 1696c0b600a..f2b3990cafe 100644
--- a/mindspore/lite/java/native/CMakeLists.txt
+++ b/mindspore/lite/java/native/CMakeLists.txt
@@ -92,12 +92,6 @@ set(JNI_SRC
 
 set(LITE_SO_NAME mindspore-lite)
 
-if(SUPPORT_TRAIN)
-  set(JNI_SRC
-          ${JNI_SRC}
-          ${CMAKE_CURRENT_SOURCE_DIR}/runtime/train_session.cpp
-  )
-endif()
 add_library(mindspore-lite-jni SHARED ${JNI_SRC})
 
 if(PLATFORM_ARM64 OR PLATFORM_ARM32)
@@ -108,13 +102,15 @@ else()
 endif()
 
 if(SUPPORT_TRAIN)
-  set(LITE_TRAIN_SO_NAME mindspore-lite-train minddata-lite)
-  if(PLATFORM_ARM64 OR PLATFORM_ARM32)
-    find_library(log-lib log)
-    target_link_libraries(mindspore-lite-jni ${LITE_TRAIN_SO_NAME} ${log-lib})
-  else()
-    target_link_libraries(mindspore-lite-jni ${LITE_TRAIN_SO_NAME})
-  endif()
+    set(LITE_TRAIN_SO_NAME mindspore-lite-train minddata-lite)
+    set(JNI_TRAIN_SRC ${CMAKE_CURRENT_SOURCE_DIR}/runtime/train_session.cpp)
+    add_library(mindspore-lite-train-jni SHARED ${JNI_TRAIN_SRC})
+    if(PLATFORM_ARM64 OR PLATFORM_ARM32)
+        find_library(log-lib log)
+        target_link_libraries(mindspore-lite-train-jni ${LITE_TRAIN_SO_NAME} ${log-lib})
+    else()
+        target_link_libraries(mindspore-lite-train-jni ${LITE_TRAIN_SO_NAME})
+    endif()
 endif()
 
 set(NDK_STRIP
diff --git a/mindspore/lite/java/native/runtime/train_session.cpp b/mindspore/lite/java/native/runtime/train_session.cpp
index 071e8306144..d959b76b58d 100644
--- a/mindspore/lite/java/native/runtime/train_session.cpp
+++ b/mindspore/lite/java/native/runtime/train_session.cpp
@@ -20,7 +20,7 @@
 #include "include/train/train_cfg.h"
 #include "include/errorcode.h"
 
-extern "C" JNIEXPORT jlong JNICALL Java_com_mindspore_lite_LiteSession_createTrainSession(JNIEnv *env, jobject thiz,
+extern "C" JNIEXPORT jlong JNICALL Java_com_mindspore_lite_TrainSession_createTrainSession(JNIEnv *env, jobject thiz,
                                                                                           jstring file_name,
                                                                                           jlong ms_context_ptr,
                                                                                           jboolean train_mode,