diff --git a/build/build.sh b/build/build.sh
index a833fc78272cb0f5a936fc3f114013363b7aac8d..1322c2d1b8759904b0d2e56ac73b1a2dea8746f8 100644
--- a/build/build.sh
+++ b/build/build.sh
@@ -15,6 +15,7 @@
 #
 set -e
 source build/envsetup.sh
+make clean
 option=$@
 if [ "$option" = "DEBUG" ]; then
   make BUILD_TYPE=DEBUG
diff --git a/build/core/maple_variables.mk b/build/core/maple_variables.mk
index a2b6edc72c6d5d5ff7b575b7e9ec5b7b09631e8e..ee8aad33aaab12a37a1d0aab76773cb0e6d0f0b9 100644
--- a/build/core/maple_variables.mk
+++ b/build/core/maple_variables.mk
@@ -1,3 +1,4 @@
+OPT := O2
 TARGETS := $(APP)
 LIB_CORE_PATH := $(MAPLE_ROOT)/libjava-core
 LIB_CORE_JAR := $(LIB_CORE_PATH)/java-core.jar
diff --git a/build/core/mplcomb.mk b/build/core/mplcomb.mk
index 4e740119350a45b77e96f86b51c3bd25147d6c19..37b7aa2b9eb59b98fc7f4e256d426ab93de43761 100644
--- a/build/core/mplcomb.mk
+++ b/build/core/mplcomb.mk
@@ -1,2 +1,2 @@
 $(APP_S): %.VtableImpl.s : %.jar $(MAPLE_BIN) $(JBC2MPL_BIN) $(MPLCG_BIN) $(LIB_CORE_MPLT)
-	$(MAPLE_BIN) -O0 --mplt $(LIB_CORE_MPLT) $<
+	$(MAPLE_BIN) -$(OPT) --mplt $(LIB_CORE_MPLT) $<
diff --git a/src/bin/maple b/src/bin/maple
index 5aab2e9d7002113e58fd002adbe59d1e30371892..22bb015508943636089b8cdb800aae03ba936e46 100755
Binary files a/src/bin/maple and b/src/bin/maple differ
diff --git a/src/maple_driver/defs/default/O2_options_me.def b/src/maple_driver/defs/default/O2_options_me.def
new file mode 100644
index 0000000000000000000000000000000000000000..623af4569b8d286aec172d26e5a0c64554fb8d4f
--- /dev/null
+++ b/src/maple_driver/defs/default/O2_options_me.def
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) [2019-2020] Huawei Technologies Co.,Ltd.All rights reserved.
+ *
+ * OpenArkCompiler is licensed under the Mulan PSL v1.
+ * You can use this software according to the terms and conditions of the Mulan PSL v1.
+ * You may obtain a copy of Mulan PSL v1 at:
+ *
+ *     http://license.coscl.org.cn/MulanPSL
+ *
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR
+ * FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v1 for more details.
+ */
+// option name, option value, option connect sysmbol, can append?, append spilter.
+{ "-O2", "", "", false, "", false },
+{ "--quiet", "", "", false, "", false },
diff --git a/src/maple_driver/defs/default/O2_options_mpl2mpl.def b/src/maple_driver/defs/default/O2_options_mpl2mpl.def
new file mode 100644
index 0000000000000000000000000000000000000000..fa58e815c96ac9368f01146950b9189d289c77bb
--- /dev/null
+++ b/src/maple_driver/defs/default/O2_options_mpl2mpl.def
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) [2019-2020] Huawei Technologies Co.,Ltd.All rights reserved.
+ *
+ * OpenArkCompiler is licensed under the Mulan PSL v1.
+ * You can use this software according to the terms and conditions of the Mulan PSL v1.
+ * You may obtain a copy of Mulan PSL v1 at:
+ *
+ *     http://license.coscl.org.cn/MulanPSL
+ *
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR
+ * FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v1 for more details.
+ */
+// option name, option value, option connect sysmbol, can append?, append spilter.
+{ "-O2", "", "", false, "", false },
+{ "--quiet", "", "", false, "", false },
+{ "--regnativefunc", "", "", false, "", false },
+{ "--no-nativeopt", "", "", false, "", false },
+{ "--emitVtableImpl", "", "", false, "", false },
diff --git a/src/maple_driver/defs/default/O2_options_mplcg.def b/src/maple_driver/defs/default/O2_options_mplcg.def
new file mode 100644
index 0000000000000000000000000000000000000000..4f82acc0f99be8aa77d7f6a9b4d80a0b87a7f004
--- /dev/null
+++ b/src/maple_driver/defs/default/O2_options_mplcg.def
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) [2019-2020] Huawei Technologies Co.,Ltd.All rights reserved.
+ *
+ * OpenArkCompiler is licensed under the Mulan PSL v1.
+ * You can use this software according to the terms and conditions of the Mulan PSL v1.
+ * You may obtain a copy of Mulan PSL v1 at:
+ *
+ *     http://license.coscl.org.cn/MulanPSL
+ *
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR
+ * FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v1 for more details.
+ */
+// option name, option value, option connect sysmbol, can append?, append spilter.
+{ "-O2", "", "", false, "", false },
+{ "--quiet", "", "", false, "", false },
+{ "--no-pie", "", "", false, "", false },
+{ "--verbose-asm", "", "", false, "", false },
+{ "--fpic", "", "", false, "", false },
+
diff --git a/src/maple_driver/defs/default_options.def b/src/maple_driver/defs/default_options.def
index 8062502304ce2064742aee2b0b23216edc676efd..ca4fa79ff66a381c3bda07a0f90558765805534b 100644
--- a/src/maple_driver/defs/default_options.def
+++ b/src/maple_driver/defs/default_options.def
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) [2019] Huawei Technologies Co.,Ltd.All rights reserved.
+ * Copyright (c) [2019-2020] Huawei Technologies Co.,Ltd.All rights reserved.
  *
  * OpenArkCompiler is licensed under the Mulan PSL v1.
  * You can use this software according to the terms and conditions of the Mulan PSL v1.
@@ -28,5 +28,17 @@ static MplOption kMpl2MplDefaultOptionsO0[] = {
 static MplOption kMplcgDefaultOptionsO0[] = {
 #include "default/O0_options_mplcg.def"
 };
+// O2 ME options
+static MplOption kMeDefaultOptionsO2[] = {
+#include "default/O2_options_me.def"
+};
+// O2 mpl2mpl options
+static MplOption kMpl2MplDefaultOptionsO2[] = {
+#include "default/O2_options_mpl2mpl.def"
+};
+// O2 mplcg options
+static MplOption kMplcgDefaultOptionsO2[] = {
+#include "default/O2_options_mplcg.def"
+};
 }  // namespace maple
 #endif  // MAPLE_DRIVER_INCLUDE_DEFAULT_OPTIONS_H
diff --git a/src/maple_driver/include/usages.h b/src/maple_driver/include/usages.h
index df4d4da61389c6f0a4fcbbd224e5317197de353e..9ff0b7235e794502afebf3dcff2f2807ba16f37d 100644
--- a/src/maple_driver/include/usages.h
+++ b/src/maple_driver/include/usages.h
@@ -23,6 +23,7 @@ enum OptionIndex : uint64 {
   kInFile,
   kInMplt,
   kOptimization0,
+  kOptimization2,
   kMeOpt,
   kMpl2MplOpt,
   kSaveTemps,
diff --git a/src/maple_driver/src/mpl_options.cpp b/src/maple_driver/src/mpl_options.cpp
index 9af0224307b153a13a3a823fe3d9b869005f242e..5a8ea6ce08e264c7d693950e75cf095e02d8cefb 100644
--- a/src/maple_driver/src/mpl_options.cpp
+++ b/src/maple_driver/src/mpl_options.cpp
@@ -104,6 +104,18 @@ const mapleOption::Descriptor usages[] = {
     "  -O0                         \tNo optimization.\n",
     "all",
     { { nullptr, nullptr, nullptr, nullptr } } },
+  { kOptimization2,
+    0,
+    "O2",
+    nullptr,
+    nullptr,
+    false,
+    nullptr,
+    mapleOption::BuildType::kBuildTypeAll,
+    mapleOption::ArgCheckPolicy::kArgCheckPolicyNone,
+    "  -O2                         \tDo more optimization. (Default)\n",
+    "all",
+    { { nullptr, nullptr, nullptr, nullptr } } },
   { kMeOpt,
     0,
     nullptr,
@@ -1302,6 +1314,14 @@ ErrorCode MplOptions::DecideRunType() {
           optimizationLevel = kO0;
         }
         break;
+      case kOptimization2:
+        if (runMode == RunMode::kCustomRun) {  // O0 and run should not appear at the same time
+          runModeConflict = true;
+        } else {
+          runMode = RunMode::kAutoRun;
+          optimizationLevel = kO2;
+        }
+        break;
       case kRun:
         if (runMode == RunMode::kAutoRun) {    // O0 and run should not appear at the same time
           runModeConflict = true;
@@ -1476,15 +1496,23 @@ ErrorCode MplOptions::AppendDefaultCombOptions() {
     if (ret != kErrorNoError) {
       return ret;
     }
+  } else if (optimizationLevel == kO2) {
+    ret = AppendDefaultOptions(kBinNameMe, kMeDefaultOptionsO2, sizeof(kMeDefaultOptionsO2) / sizeof(MplOption));
+    if (ret != kErrorNoError) {
+      return ret;
+    }
+    ret = AppendDefaultOptions(kBinNameMpl2mpl, kMpl2MplDefaultOptionsO2,
+                               sizeof(kMpl2MplDefaultOptionsO2) / sizeof(MplOption));
+    if (ret != kErrorNoError) {
+      return ret;
+    }
   }
   return ret;
 }
 
 ErrorCode MplOptions::AppendDefaultCgOptions() {
   ErrorCode ret = kErrorNoError;
-  if (optimizationLevel == kO0) {
-    UpdateRunningExe(kBinNameMplcg);
-  }
+  UpdateRunningExe(kBinNameMplcg);
   return ret;
 }
 
diff --git a/src/maple_driver/src/mplcg_compiler.cpp b/src/maple_driver/src/mplcg_compiler.cpp
index 961e86b46fd1fccc16d91126cbb880fa06b9270a..bd629fdd9fcdb2efa2d9941fe0c86d22a6e329b8 100644
--- a/src/maple_driver/src/mplcg_compiler.cpp
+++ b/src/maple_driver/src/mplcg_compiler.cpp
@@ -27,6 +27,9 @@ DefaultOption MplcgCompiler::GetDefaultOptions(const MplOptions &options) const
   if (options.GetOptimizationLevel() == kO0 && options.HasSetDefaultLevel()) {
     defaultOptions.mplOptions = kMplcgDefaultOptionsO0;
     defaultOptions.length = sizeof(kMplcgDefaultOptionsO0) / sizeof(MplOption);
+  } else if (options.GetOptimizationLevel() == kO2 && options.HasSetDefaultLevel()) {
+    defaultOptions.mplOptions = kMplcgDefaultOptionsO2;
+    defaultOptions.length = sizeof(kMplcgDefaultOptionsO2) / sizeof(MplOption);
   }
   return defaultOptions;
 }