diff --git a/app/build.gradle b/app/build.gradle
index a69b217..1493402 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -28,4 +28,6 @@
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
     // Retrofit
     implementation "com.squareup.retrofit2:retrofit:2.5.0"
+    //QRコードリーダー
+    implementation 'com.journeyapps:zxing-android-embedded:3.6.0'
 }
diff --git a/app/src/main/java/com/example/cosmosclient/views/DisplayQRActivity.java b/app/src/main/java/com/example/cosmosclient/views/DisplayQRActivity.java
index 7d2e752..18c332e 100644
--- a/app/src/main/java/com/example/cosmosclient/views/DisplayQRActivity.java
+++ b/app/src/main/java/com/example/cosmosclient/views/DisplayQRActivity.java
@@ -1,9 +1,15 @@
 package com.example.cosmosclient.views;
 
+import android.graphics.Bitmap;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
+import android.util.AndroidRuntimeException;
+import android.widget.ImageView;
 
 import com.example.cosmosclient.R;
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.WriterException;
+import com.journeyapps.barcodescanner.BarcodeEncoder;
 
 public class DisplayQRActivity extends AppCompatActivity {
 
@@ -11,5 +17,24 @@
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_display_qr);
+        //QRコード化する文字列
+        String data = "http://researchers.adm.konan-u.ac.jp/html/130_ja.html";
+        //QRコード画像の大きさを指定(pixel)
+        int size = 500;
+
+
+        try {
+            BarcodeEncoder barcodeEncoder = new BarcodeEncoder();
+            //QRコードをBitmapで作成
+            Bitmap bitmap = barcodeEncoder.encodeBitmap(data, BarcodeFormat.QR_CODE, size, size);
+
+            //作成したQRコードを画面上に配置
+            ImageView imageViewQrCode = (ImageView) findViewById(R.id.QRimage);
+            imageViewQrCode.setImageBitmap(bitmap);
+
+        } catch (WriterException e) {
+            throw new AndroidRuntimeException("Barcode Error.", e);
+        }
+
     }
 }
diff --git a/app/src/main/res/layout/activity_display_qr.xml b/app/src/main/res/layout/activity_display_qr.xml
index 2a461bd..1b1b99c 100644
--- a/app/src/main/res/layout/activity_display_qr.xml
+++ b/app/src/main/res/layout/activity_display_qr.xml
@@ -29,7 +29,7 @@
         tools:layout_editor_absoluteX="16dp" />
 
     <ImageView
-        android:id="@+id/imageView"
+        android:id="@+id/QRimage"
         android:layout_width="296dp"
         android:layout_height="243dp"
         android:layout_marginStart="50dp"
@@ -43,8 +43,7 @@
         app:layout_constraintHorizontal_bias="0.5"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/groupName"
-        app:layout_constraintVertical_bias="0.501"
-        app:srcCompat="@drawable/qr_code_ex" />
+        app:layout_constraintVertical_bias="0.501" />
 
 
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file