diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 80cd38d..4d249f4 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -12,13 +12,16 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".activity.TestActivity">
+        <activity android:name=".activity.TestActivity"></activity>
+        <activity android:name=".activity.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
+
         </activity>
+
         <service android:name=".service.MainService" />
     </application>
 
diff --git a/app/src/main/kotlin/jackall/moncalc/activity/MainActivity.kt b/app/src/main/kotlin/jackall/moncalc/activity/MainActivity.kt
new file mode 100644
index 0000000..7fcd034
--- /dev/null
+++ b/app/src/main/kotlin/jackall/moncalc/activity/MainActivity.kt
@@ -0,0 +1,22 @@
+package jackall.moncalc.activity
+
+import android.arch.lifecycle.ViewModelProviders
+import android.databinding.DataBindingUtil
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import jackall.moncalc.R
+import jackall.moncalc.databinding.ActivityMainBinding
+import jackall.moncalc.viewmodel.MainViewModel
+
+/**
+ * Created by matsumoto_k on 2017/11/03.
+ */
+class MainActivity : AppCompatActivity() {
+    val mainBinding by lazy { DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main) }
+    val mainViewModel by lazy { ViewModelProviders.of(this, MainViewModel.Factory()).get(MainViewModel::class.java) }
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        mainBinding.mainViewModel = mainViewModel
+        lifecycle.addObserver(mainViewModel)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/kotlin/jackall/moncalc/viewmodel/MainViewModel.kt b/app/src/main/kotlin/jackall/moncalc/viewmodel/MainViewModel.kt
index d410cd5..f864cef 100644
--- a/app/src/main/kotlin/jackall/moncalc/viewmodel/MainViewModel.kt
+++ b/app/src/main/kotlin/jackall/moncalc/viewmodel/MainViewModel.kt
@@ -1,12 +1,18 @@
 package jackall.moncalc.viewmodel
 
 import android.arch.lifecycle.ViewModel
+import android.arch.lifecycle.ViewModelProvider
 
 /**
  * MainActivityのViewModel.
  *
  * Created by matsumoto_k on 2017/11/01.
  */
-class MainViewModel : ViewModel() {
+class MainViewModel : LifecycleViewModel() {
 
+    class Factory() : ViewModelProvider.NewInstanceFactory() {
+        override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+            return MainViewModel() as T
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..5ae9ae2
--- /dev/null
+++ b/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <data>
+
+        <variable
+            name="mainViewModel"
+            type="jackall.moncalc.viewmodel.MainViewModel" />
+    </data>
+
+    <android.support.constraint.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    </android.support.constraint.ConstraintLayout>
+</layout>
\ No newline at end of file