diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b7d5337..5ec2f42 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -10,7 +10,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".activity.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/app/src/main/java/keijumt/devandroid/MainActivity.kt b/app/src/main/java/keijumt/devandroid/MainActivity.kt
deleted file mode 100644
index 6092871..0000000
--- a/app/src/main/java/keijumt/devandroid/MainActivity.kt
+++ /dev/null
@@ -1,12 +0,0 @@
-package keijumt.devandroid
-
-import android.support.v7.app.AppCompatActivity
-import android.os.Bundle
-
-class MainActivity : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/keijumt/devandroid/activity/BaseActivity.kt b/app/src/main/java/keijumt/devandroid/activity/BaseActivity.kt
new file mode 100644
index 0000000..ae3450d
--- /dev/null
+++ b/app/src/main/java/keijumt/devandroid/activity/BaseActivity.kt
@@ -0,0 +1,9 @@
+package keijumt.devandroid.activity
+
+import android.support.v7.app.AppCompatActivity
+
+/**
+ * Activityの基底クラス
+ */
+abstract class BaseActivity : AppCompatActivity() {
+}
\ No newline at end of file
diff --git a/app/src/main/java/keijumt/devandroid/activity/MainActivity.kt b/app/src/main/java/keijumt/devandroid/activity/MainActivity.kt
new file mode 100644
index 0000000..97fdcf6
--- /dev/null
+++ b/app/src/main/java/keijumt/devandroid/activity/MainActivity.kt
@@ -0,0 +1,12 @@
+package keijumt.devandroid.activity
+
+import android.os.Bundle
+import keijumt.devandroid.R
+
+class MainActivity : BaseActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/keijumt/devandroid/fragment/BaseFragment.kt b/app/src/main/java/keijumt/devandroid/fragment/BaseFragment.kt
new file mode 100644
index 0000000..6b6ffb2
--- /dev/null
+++ b/app/src/main/java/keijumt/devandroid/fragment/BaseFragment.kt
@@ -0,0 +1,9 @@
+package keijumt.devandroid.fragment
+
+import android.app.Fragment
+
+/**
+ * Fragmentの基底クラス
+ */
+abstract class BaseFragment : Fragment() {
+}
\ No newline at end of file
diff --git a/app/src/main/java/keijumt/devandroid/fragment/MainFragment.kt b/app/src/main/java/keijumt/devandroid/fragment/MainFragment.kt
new file mode 100644
index 0000000..0e196c7
--- /dev/null
+++ b/app/src/main/java/keijumt/devandroid/fragment/MainFragment.kt
@@ -0,0 +1,27 @@
+package keijumt.devandroid.fragment
+
+
+import android.databinding.DataBindingUtil
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import keijumt.devandroid.R
+import keijumt.devandroid.databinding.FragmentMainBinding
+import keijumt.devandroid.viewmodel.MainViewModel
+
+class MainFragment : BaseFragment() {
+
+    lateinit var binding: FragmentMainBinding
+    lateinit var mainViewModel: MainViewModel
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
+                              savedInstanceState: Bundle?): View? {
+        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_main, null, false)
+        mainViewModel = MainViewModel()
+        binding.mainViewModel = mainViewModel
+        return binding.root
+    }
+
+
+}
diff --git a/app/src/main/java/keijumt/devandroid/viewmodel/BaseViewModel.kt b/app/src/main/java/keijumt/devandroid/viewmodel/BaseViewModel.kt
new file mode 100644
index 0000000..56424b5
--- /dev/null
+++ b/app/src/main/java/keijumt/devandroid/viewmodel/BaseViewModel.kt
@@ -0,0 +1,11 @@
+package keijumt.devandroid.viewmodel
+
+import android.arch.lifecycle.LifecycleObserver
+import android.arch.lifecycle.ViewModel
+
+/**
+ * ViewModelの基底クラス
+ */
+abstract class BaseViewModel : ViewModel(), LifecycleObserver {
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/keijumt/devandroid/viewmodel/MainViewModel.kt b/app/src/main/java/keijumt/devandroid/viewmodel/MainViewModel.kt
new file mode 100644
index 0000000..673beb5
--- /dev/null
+++ b/app/src/main/java/keijumt/devandroid/viewmodel/MainViewModel.kt
@@ -0,0 +1,6 @@
+package keijumt.devandroid.viewmodel
+
+import android.arch.lifecycle.ViewModel
+
+class MainViewModel : ViewModel() {
+}
\ 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
index 84f1951..b44e8d6 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,18 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".activity.MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <fragment
+        android:id="@+id/fragment_main"
+        android:name="keijumt.devandroid.fragment.MainFragment"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
 
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
new file mode 100644
index 0000000..2dc7ede
--- /dev/null
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <data>
+
+        <variable
+            name="mainViewModel"
+            type="keijumt.devandroid.viewmodel.MainViewModel" />
+    </data>
+
+    <android.support.constraint.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="mainFragment" />
+
+    </android.support.constraint.ConstraintLayout>
+</layout>
\ No newline at end of file