diff --git a/arthas-vmtool/pom.xml b/arthas-vmtool/pom.xml
index e6162a87e..c13775d75 100644
--- a/arthas-vmtool/pom.xml
+++ b/arthas-vmtool/pom.xml
@@ -198,10 +198,6 @@
             <artifactId>arthas-common</artifactId>
             <version>${project.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.scijava</groupId>
-            <artifactId>native-lib-loader</artifactId>
-        </dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
diff --git a/arthas-vmtool/src/main/java/com/vdian/vclub/JvmUtils.java b/arthas-vmtool/src/main/java/arthas/Vmtool.java
similarity index 65%
rename from arthas-vmtool/src/main/java/com/vdian/vclub/JvmUtils.java
rename to arthas-vmtool/src/main/java/arthas/Vmtool.java
index 0f707984a..3430ae95b 100644
--- a/arthas-vmtool/src/main/java/com/vdian/vclub/JvmUtils.java
+++ b/arthas-vmtool/src/main/java/arthas/Vmtool.java
@@ -1,28 +1,41 @@
-package com.vdian.vclub;
-
-import com.taobao.arthas.common.AnsiLog;
-import org.scijava.nativelib.NativeLoader;
+package arthas;
 
 import java.util.ArrayList;
 
 /**
  * @author ZhangZiCheng 2021-02-12
+ * @author hengyunabc 2021-04-26
  * @since 3.5.1
  */
-public class JvmUtils {
+public class Vmtool {
 
     /**
      * 不要修改jni-lib的名称
      */
-    private final static String JNI_LIBRARY_NAME = "ArthasJniLibrary";
+    public final static String JNI_LIBRARY_NAME = "ArthasJniLibrary";
 
-    static {
-        try {
-            NativeLoader.loadLibrary(JNI_LIBRARY_NAME);
-            AnsiLog.warn("checkResult->" + check() + ", jni-lib available !");
-        } catch (Throwable t) {
-            AnsiLog.error("load jni-lib failed:" + t.getMessage(), t);
+    private static Vmtool instance;
+
+    private Vmtool() {
+    }
+
+    public static Vmtool getInstance() {
+        return getInstance(null);
+    }
+
+    public static synchronized Vmtool getInstance(String libPath) {
+        if (instance != null) {
+            return instance;
         }
+
+        if (libPath == null) {
+            System.loadLibrary(JNI_LIBRARY_NAME);
+        } else {
+            System.load(libPath);
+        }
+
+        instance = new Vmtool();
+        return instance;
     }
 
     /**
diff --git a/arthas-vmtool/src/main/native/include/arthas_Vmtool.h b/arthas-vmtool/src/main/native/include/arthas_Vmtool.h
new file mode 100644
index 000000000..903c47405
--- /dev/null
+++ b/arthas-vmtool/src/main/native/include/arthas_Vmtool.h
@@ -0,0 +1,61 @@
+/* DO NOT EDIT THIS FILE - it is machine generated */
+#include <jni.h>
+/* Header for class arthas_Vmtool */
+
+#ifndef _Included_arthas_Vmtool
+#define _Included_arthas_Vmtool
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+ * Class:     arthas_Vmtool
+ * Method:    check
+ * Signature: ()Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_arthas_Vmtool_check
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     arthas_Vmtool
+ * Method:    getInstances
+ * Signature: (Ljava/lang/Class;)Ljava/util/ArrayList;
+ */
+JNIEXPORT jobject JNICALL Java_arthas_Vmtool_getInstances
+  (JNIEnv *, jclass, jclass);
+
+/*
+ * Class:     arthas_Vmtool
+ * Method:    sumInstanceSize
+ * Signature: (Ljava/lang/Class;)J
+ */
+JNIEXPORT jlong JNICALL Java_arthas_Vmtool_sumInstanceSize
+  (JNIEnv *, jclass, jclass);
+
+/*
+ * Class:     arthas_Vmtool
+ * Method:    getInstanceSize
+ * Signature: (Ljava/lang/Object;)J
+ */
+JNIEXPORT jlong JNICALL Java_arthas_Vmtool_getInstanceSize
+  (JNIEnv *, jclass, jobject);
+
+/*
+ * Class:     arthas_Vmtool
+ * Method:    countInstances
+ * Signature: (Ljava/lang/Class;)J
+ */
+JNIEXPORT jlong JNICALL Java_arthas_Vmtool_countInstances
+  (JNIEnv *, jclass, jclass);
+
+/*
+ * Class:     arthas_Vmtool
+ * Method:    getAllLoadedClasses
+ * Signature: ()Ljava/util/ArrayList;
+ */
+JNIEXPORT jobject JNICALL Java_arthas_Vmtool_getAllLoadedClasses
+  (JNIEnv *, jclass);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/arthas-vmtool/src/main/native/include/com_vdian_vclub_JvmUtils.h b/arthas-vmtool/src/main/native/include/com_vdian_vclub_JvmUtils.h
deleted file mode 100644
index f6557e4fa..000000000
--- a/arthas-vmtool/src/main/native/include/com_vdian_vclub_JvmUtils.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* DO NOT EDIT THIS FILE - it is machine generated */
-#include <jni.h>
-/* Header for class com_vdian_vclub_JvmUtils */
-
-#ifndef _Included_com_vdian_vclub_JvmUtils
-#define _Included_com_vdian_vclub_JvmUtils
-#ifdef __cplusplus
-extern "C" {
-#endif
-/*
- * Class:     com_vdian_vclub_JvmUtils
- * Method:    check
- * Signature: ()Ljava/lang/String;
- */
-JNIEXPORT jstring JNICALL Java_com_vdian_vclub_JvmUtils_check
-  (JNIEnv *, jclass);
-
-/*
- * Class:     com_vdian_vclub_JvmUtils
- * Method:    getInstances
- * Signature: (Ljava/lang/Class;)Ljava/util/ArrayList;
- */
-JNIEXPORT jobject JNICALL Java_com_vdian_vclub_JvmUtils_getInstances
-  (JNIEnv *, jclass, jclass);
-
-/*
- * Class:     com_vdian_vclub_JvmUtils
- * Method:    sumInstanceSize
- * Signature: (Ljava/lang/Class;)J
- */
-JNIEXPORT jlong JNICALL Java_com_vdian_vclub_JvmUtils_sumInstanceSize
-  (JNIEnv *, jclass, jclass);
-
-/*
- * Class:     com_vdian_vclub_JvmUtils
- * Method:    getInstanceSize
- * Signature: (Ljava/lang/Object;)J
- */
-JNIEXPORT jlong JNICALL Java_com_vdian_vclub_JvmUtils_getInstanceSize
-  (JNIEnv *, jclass, jobject);
-
-/*
- * Class:     com_vdian_vclub_JvmUtils
- * Method:    countInstances
- * Signature: (Ljava/lang/Class;)J
- */
-JNIEXPORT jlong JNICALL Java_com_vdian_vclub_JvmUtils_countInstances
-  (JNIEnv *, jclass, jclass);
-
-/*
- * Class:     com_vdian_vclub_JvmUtils
- * Method:    getAllLoadedClasses
- * Signature: ()Ljava/util/ArrayList;
- */
-JNIEXPORT jobject JNICALL Java_com_vdian_vclub_JvmUtils_getAllLoadedClasses
-  (JNIEnv *, jclass);
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/arthas-vmtool/src/main/native/src/jni-library.cpp b/arthas-vmtool/src/main/native/src/jni-library.cpp
index bffd95f80..2e81b183c 100644
--- a/arthas-vmtool/src/main/native/src/jni-library.cpp
+++ b/arthas-vmtool/src/main/native/src/jni-library.cpp
@@ -2,11 +2,11 @@
 #include <jni.h>
 #include <jni_md.h>
 #include <jvmti.h>
-#include "com_vdian_vclub_JvmUtils.h"
+#include "arthas_Vmtool.h"
 
 extern "C"
 JNIEXPORT jstring JNICALL
-Java_com_vdian_vclub_JvmUtils_check(JNIEnv *env, jclass thisClass) {
+Java_arthas_Vmtool_check(JNIEnv *env, jclass thisClass) {
     return env->NewStringUTF("OK");
 }
 
@@ -47,7 +47,7 @@ HeapObjectCallback(jlong class_tag, jlong size, jlong *tag_ptr, void *user_data)
 
 extern "C"
 JNIEXPORT jobject JNICALL
-Java_com_vdian_vclub_JvmUtils_getInstances(JNIEnv *env, jclass thisClass, jclass klass) {
+Java_arthas_Vmtool_getInstances(JNIEnv *env, jclass thisClass, jclass klass) {
 
     jvmtiEnv *jvmti = getJvmtiEnv(env);
 
@@ -88,7 +88,7 @@ Java_com_vdian_vclub_JvmUtils_getInstances(JNIEnv *env, jclass thisClass, jclass
 
 extern "C"
 JNIEXPORT jlong JNICALL
-Java_com_vdian_vclub_JvmUtils_sumInstanceSize(JNIEnv *env, jclass thisClass, jclass klass) {
+Java_arthas_Vmtool_sumInstanceSize(JNIEnv *env, jclass thisClass, jclass klass) {
 
     jvmtiEnv *jvmti = getJvmtiEnv(env);
 
@@ -126,7 +126,7 @@ Java_com_vdian_vclub_JvmUtils_sumInstanceSize(JNIEnv *env, jclass thisClass, jcl
 }
 
 extern "C"
-JNIEXPORT jlong JNICALL Java_com_vdian_vclub_JvmUtils_getInstanceSize
+JNIEXPORT jlong JNICALL Java_arthas_Vmtool_getInstanceSize
         (JNIEnv *env, jclass thisClass, jobject instance) {
 
     jvmtiEnv *jvmti = getJvmtiEnv(env);
@@ -142,7 +142,7 @@ JNIEXPORT jlong JNICALL Java_com_vdian_vclub_JvmUtils_getInstanceSize
 
 extern "C"
 JNIEXPORT jlong JNICALL
-Java_com_vdian_vclub_JvmUtils_countInstances(JNIEnv *env, jclass thisClass, jclass klass) {
+Java_arthas_Vmtool_countInstances(JNIEnv *env, jclass thisClass, jclass klass) {
 
     jvmtiEnv *jvmti = getJvmtiEnv(env);
 
@@ -172,7 +172,7 @@ Java_com_vdian_vclub_JvmUtils_countInstances(JNIEnv *env, jclass thisClass, jcla
 }
 
 extern "C"
-JNIEXPORT jobject JNICALL Java_com_vdian_vclub_JvmUtils_getAllLoadedClasses
+JNIEXPORT jobject JNICALL Java_arthas_Vmtool_getAllLoadedClasses
         (JNIEnv *env, jclass thisClass) {
 
     jvmtiEnv *jvmti = getJvmtiEnv(env);
diff --git a/arthas-vmtool/src/test/java/arthas/VmtoolTest.java b/arthas-vmtool/src/test/java/arthas/VmtoolTest.java
new file mode 100644
index 000000000..915e0d54b
--- /dev/null
+++ b/arthas-vmtool/src/test/java/arthas/VmtoolTest.java
@@ -0,0 +1,57 @@
+package arthas;
+
+import org.junit.Test;
+
+import arthas.Vmtool;
+
+import java.io.File;
+import java.lang.ref.WeakReference;
+import java.util.ArrayList;
+
+public class VmtoolTest {
+
+    /**
+     * 在我的macbook上运行结果如下
+     * allLoadedClasses->1050
+     * arthas.JvmUtils@5bb21b69 arthas.JvmUtils@6b9651f3
+     * before instances->[arthas.JvmUtils@5bb21b69, arthas.JvmUtils@6b9651f3]
+     * size->16
+     * count->2
+     * sum size->32
+     * null null
+     * after instances->[]
+     */
+    @Test
+    public void test01() {
+        try {
+            String path = Vmtool.class.getProtectionDomain().getCodeSource().getLocation().getPath();
+            System.err.println(path);
+
+            String libPath = new File(path, System.mapLibraryName(Vmtool.JNI_LIBRARY_NAME)).getAbsolutePath();
+            Vmtool.getInstance(libPath);
+
+            //调用native方法，获取已加载的类，不包括小类型(如int)
+            ArrayList<Class<?>> allLoadedClasses = Vmtool.getAllLoadedClasses();
+            System.out.println("allLoadedClasses->" + allLoadedClasses.size());
+
+            //通过下面的例子，可以看到getInstances(Class<T> klass)拿到的是当前存活的所有对象
+            WeakReference<VmtoolTest> weakReference1 = new WeakReference<VmtoolTest>(new VmtoolTest());
+            WeakReference<VmtoolTest> weakReference2 = new WeakReference<VmtoolTest>(new VmtoolTest());
+            System.out.println(weakReference1.get() + " " + weakReference2.get());
+            ArrayList<Vmtool> beforeInstances = Vmtool.getInstances(Vmtool.class);
+            System.out.println("before instances->" + beforeInstances);
+            System.out.println("size->" + Vmtool.getInstanceSize(weakReference1.get()));
+            System.out.println("count->" + Vmtool.countInstances(Vmtool.class));
+            System.out.println("sum size->" + Vmtool.sumInstanceSize(Vmtool.class));
+            beforeInstances = null;
+
+            System.gc();
+            Thread.sleep(100);
+            System.out.println(weakReference1.get() + " " + weakReference2.get());
+            ArrayList<Vmtool> afterInstances = Vmtool.getInstances(Vmtool.class);
+            System.out.println("after instances->" + afterInstances);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/arthas-vmtool/src/test/java/com/vdian/vclub/JvmUtilsTest.java b/arthas-vmtool/src/test/java/com/vdian/vclub/JvmUtilsTest.java
deleted file mode 100644
index 442995b91..000000000
--- a/arthas-vmtool/src/test/java/com/vdian/vclub/JvmUtilsTest.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.vdian.vclub;
-
-import org.junit.Test;
-
-import java.lang.ref.WeakReference;
-import java.util.ArrayList;
-
-public class JvmUtilsTest {
-
-    /**
-     * 在我的macbook上运行结果如下
-     * allLoadedClasses->1050
-     * com.vdian.vclub.JvmUtils@5bb21b69 com.vdian.vclub.JvmUtils@6b9651f3
-     * before instances->[com.vdian.vclub.JvmUtils@5bb21b69, com.vdian.vclub.JvmUtils@6b9651f3]
-     * size->16
-     * count->2
-     * sum size->32
-     * null null
-     * after instances->[]
-     */
-    @Test
-    public void test01() {
-        try {
-            //调用native方法，获取已加载的类，不包括小类型(如int)
-            ArrayList<Class<?>> allLoadedClasses = JvmUtils.getAllLoadedClasses();
-            System.out.println("allLoadedClasses->" + allLoadedClasses.size());
-
-            //通过下面的例子，可以看到getInstances(Class<T> klass)拿到的是当前存活的所有对象
-            WeakReference<JvmUtils> weakReference1 = new WeakReference<JvmUtils>(new JvmUtils());
-            WeakReference<JvmUtils> weakReference2 = new WeakReference<JvmUtils>(new JvmUtils());
-            System.out.println(weakReference1.get() + " " + weakReference2.get());
-            ArrayList<JvmUtils> beforeInstances = JvmUtils.getInstances(JvmUtils.class);
-            System.out.println("before instances->" + beforeInstances);
-            System.out.println("size->" + JvmUtils.getInstanceSize(weakReference1.get()));
-            System.out.println("count->" + JvmUtils.countInstances(JvmUtils.class));
-            System.out.println("sum size->" + JvmUtils.sumInstanceSize(JvmUtils.class));
-            beforeInstances = null;
-
-            System.gc();
-            Thread.sleep(100);
-            System.out.println(weakReference1.get() + " " + weakReference2.get());
-            ArrayList<JvmUtils> afterInstances = JvmUtils.getInstances(JvmUtils.class);
-            System.out.println("after instances->" + afterInstances);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-}