diff --git a/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/RePluginConfig.java b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/RePluginConfig.java
index 7498b805..a1775a59 100644
--- a/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/RePluginConfig.java
+++ b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/RePluginConfig.java
@@ -51,6 +51,8 @@ public final class RePluginConfig {
     private String hostVersionName = "";
     private String hostBuildID = "";
 
+    private boolean optimizeArtLoadDex = false;
+
     /**
      * 获取插件回调方法。通常无需调用此方法。
      *
@@ -337,4 +339,28 @@ private boolean checkAllowModify() {
         }
         return true;
     }
-}
+
+    /**
+     * 是否在Art上对首次加载插件速度做优化
+     *
+     * @return
+     */
+    public boolean isOptimizeArtLoadDex() {
+        return optimizeArtLoadDex;
+    }
+
+    /**
+     * 是否在Art上对首次加载插件速度做优化，默认为false
+     *
+     * @param optimizeArtLoadDex
+     * @return
+     * @since 2.2.2
+     */
+    public RePluginConfig setOptimizeArtLoadDex(boolean optimizeArtLoadDex) {
+        if (!checkAllowModify()) {
+            return this;
+        }
+        this.optimizeArtLoadDex = optimizeArtLoadDex;
+        return this;
+    }
+}
\ No newline at end of file
diff --git a/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/utils/Dex2OatUtils.java b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/utils/Dex2OatUtils.java
new file mode 100644
index 00000000..4e4a9fb0
--- /dev/null
+++ b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/utils/Dex2OatUtils.java
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2005-2017 Qihoo 360 Inc.
+ *
+ * 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
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.qihoo360.replugin.utils;
+
+import android.os.Build;
+import android.util.Log;
+
+import com.qihoo360.replugin.RePluginInternal;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * @author RePlugin Team
+ *
+ * Art Dex2Oat utils
+ */
+public class Dex2OatUtils {
+
+    public static final String TAG = "Dex2Oat";
+
+    private static final boolean FOR_DEV = RePluginInternal.FOR_DEV;
+
+    /**
+     * 判断当前是否Art模式
+     *
+     * @return
+     */
+    public static boolean isArtMode() {
+        return System.getProperty("java.vm.version", "").startsWith("2");
+    }
+
+    /**
+     * 在真正loadDex之前 inject
+     *
+     * @param dexPath
+     * @param optimizedDirectory
+     * @param optimizedFileName
+     * @return
+     */
+    public static void injectLoadDex(String dexPath, String optimizedDirectory, String optimizedFileName) {
+        if (Dex2OatUtils.isArtMode()) {
+            File odexFile = new File(optimizedDirectory, optimizedFileName);
+
+            if (!odexFile.exists() || odexFile.length() <= 0) {
+
+                if (FOR_DEV) {
+                    Log.d(Dex2OatUtils.TAG, optimizedFileName + " 文件不存在");
+                }
+
+                long being = System.currentTimeMillis();
+                boolean injectLoadDex = innerInjectLoadDex(dexPath, optimizedDirectory, optimizedFileName);
+
+                if (FOR_DEV) {
+                    Log.d(Dex2OatUtils.TAG, "injectLoadDex use:" + (System.currentTimeMillis() - being));
+                    Log.d(Dex2OatUtils.TAG, "injectLoadDex result:" + injectLoadDex);
+                }
+            } else {
+                if (FOR_DEV) {
+                    Log.d(Dex2OatUtils.TAG, optimizedFileName + " 文件存在, 不需要inject，size:" + odexFile.length());
+                }
+            }
+        }
+    }
+
+    private static boolean innerInjectLoadDex(String dexPath, String optimizedDirectory, String optimizedFileName) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            if (FOR_DEV) {
+                Log.d(TAG, "before Android L, do nothing.");
+            }
+            return false;
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && Build.VERSION.SDK_INT <= Build.VERSION_CODES.N_MR1) {
+            return injectLoadDex4Art(dexPath, optimizedDirectory, optimizedFileName);
+        } else {
+            return injectLoadDex4More();
+        }
+    }
+
+    private static boolean injectLoadDexBeforeN() {
+        if (isArtMode()) {
+
+            long begin = System.currentTimeMillis();
+
+            if (FOR_DEV) {
+                Log.d(TAG, "Art before Android N, try 2 hook.");
+            }
+
+            try {
+//                ArtAdapter.setDex2oatEnabledNative(true);
+            } catch (Throwable e) {
+                if (FOR_DEV) {
+                    e.printStackTrace();
+                    Log.e(TAG, "hook error");
+                }
+            }
+
+            if (FOR_DEV) {
+                Log.d(TAG, "hook end, use：" + (System.currentTimeMillis() - begin));
+            }
+
+            return true;
+        }
+
+        if (FOR_DEV) {
+            Log.d(TAG, "not Art, do nothing.");
+        }
+        return false;
+    }
+
+    private static boolean injectLoadDex4Art(String dexPath, String optimizedDirectory, String optimizedFileName) {
+        if (FOR_DEV) {
+            Log.d(TAG, "Andorid Art, try 2 interpretDex2Oat, interpret-only.");
+        }
+
+        String odexAbsolutePath = (optimizedDirectory + File.separator + optimizedFileName);
+
+        long begin = System.currentTimeMillis();
+        try {
+            InterpretDex2OatHelper.interpretDex2Oat(dexPath, odexAbsolutePath);
+        } catch (IOException e) {
+            if (FOR_DEV) {
+                e.printStackTrace();
+                Log.e(TAG, "interpretDex2Oat Error");
+            }
+            return false;
+        }
+
+        if (FOR_DEV) {
+            Log.d(TAG, "interpretDex2Oat use:" + (System.currentTimeMillis() - begin));
+            Log.d(TAG, "interpretDex2Oat odexSize:" + InterpretDex2OatHelper.getOdexSize(odexAbsolutePath));
+        }
+
+        return true;
+    }
+
+    private static boolean injectLoadDex4More() {
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/utils/InterpretDex2OatHelper.java b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/utils/InterpretDex2OatHelper.java
new file mode 100644
index 00000000..1935647e
--- /dev/null
+++ b/replugin-host-library/replugin-host-lib/src/main/java/com/qihoo360/replugin/utils/InterpretDex2OatHelper.java
@@ -0,0 +1,119 @@
+package com.qihoo360.replugin.utils;
+
+import android.os.Build;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+/**
+ * InterpretDex2OatHelper
+ * <p>
+ * snippet from: Tinker's TinkerDexOptimizer.java (https://github.com/Tencent/tinker)
+ * <p>
+ * Tinker is a hot-fix solution library for Android, it supports dex, library and resources update without reinstall apk.
+ */
+public class InterpretDex2OatHelper {
+
+    private static String getCurrentInstructionSet() throws Exception {
+
+        Class<?> clazz = Class.forName("dalvik.system.VMRuntime");
+        Method currentGet = clazz.getDeclaredMethod("getCurrentInstructionSet");
+
+        return (String) currentGet.invoke(null);
+    }
+
+    public static long getOdexSize(String oatFilePath) {
+        File file = new File(oatFilePath);
+        return file.exists() ? file.length() : -1;
+    }
+
+    public static void interpretDex2Oat(String dexFilePath, String oatFilePath) throws IOException {
+
+        String targetISA = null;
+        try {
+            targetISA = getCurrentInstructionSet();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        final File oatFile = new File(oatFilePath);
+        if (!oatFile.exists()) {
+            oatFile.getParentFile().mkdirs();
+        }
+
+        final List<String> commandAndParams = new ArrayList<>();
+        commandAndParams.add("dex2oat");
+
+        // for 7.1.1, duplicate class fix
+        if (Build.VERSION.SDK_INT >= 24) {
+            commandAndParams.add("--runtime-arg");
+            commandAndParams.add("-classpath");
+            commandAndParams.add("--runtime-arg");
+            commandAndParams.add("&");
+        }
+        commandAndParams.add("--dex-file=" + dexFilePath);
+        commandAndParams.add("--oat-file=" + oatFilePath);
+        commandAndParams.add("--instruction-set=" + targetISA);
+
+        if (Build.VERSION.SDK_INT > 25) {
+            commandAndParams.add("--compiler-filter=quicken");
+        } else {
+            commandAndParams.add("--compiler-filter=interpret-only");
+        }
+
+        final ProcessBuilder pb = new ProcessBuilder(commandAndParams);
+        pb.redirectErrorStream(true);
+
+        final Process dex2oatProcess = pb.start();
+
+        StreamConsumer.consumeInputStream(dex2oatProcess.getInputStream());
+        StreamConsumer.consumeInputStream(dex2oatProcess.getErrorStream());
+
+        try {
+            final int ret = dex2oatProcess.waitFor();
+
+            if (ret != 0) {
+                throw new IOException("dex2oat works unsuccessfully, exit code: " + ret);
+            }
+        } catch (InterruptedException e) {
+            throw new IOException("dex2oat is interrupted, msg: " + e.getMessage(), e);
+        }
+    }
+
+    private static class StreamConsumer {
+        static final Executor STREAM_CONSUMER = Executors.newSingleThreadExecutor();
+
+        static void consumeInputStream(final InputStream is) {
+            STREAM_CONSUMER.execute(new Runnable() {
+                @Override
+                public void run() {
+
+                    if (is == null) {
+                        return;
+                    }
+
+                    final byte[] buffer = new byte[256];
+                    try {
+                        while ((is.read(buffer)) > 0) {
+                            // To satisfy checkstyle rules.
+                        }
+                    } catch (IOException ignored) {
+                        // Ignored.
+                    } finally {
+                        try {
+                            is.close();
+                        } catch (Exception ignored) {
+                            // Ignored.
+                        }
+                    }
+                }
+            });
+        }
+    }
+}
\ No newline at end of file