diff --git a/nflg-mobilebroken-admin/src/main/java/com/nflg/mobilebroken/admin/service/DeviceQRCodeService.java b/nflg-mobilebroken-admin/src/main/java/com/nflg/mobilebroken/admin/service/DeviceQRCodeService.java
index ee8f8ee3..390da978 100644
--- a/nflg-mobilebroken-admin/src/main/java/com/nflg/mobilebroken/admin/service/DeviceQRCodeService.java
+++ b/nflg-mobilebroken-admin/src/main/java/com/nflg/mobilebroken/admin/service/DeviceQRCodeService.java
@@ -18,6 +18,6 @@ public class DeviceQRCodeService {
 
     public byte[] generate(String deviceNo, String modelNo) throws Exception {
         ParamConfig config = paramConfigService.lambdaQuery().eq(ParamConfig::getCode, "DeviceQRCodeHost").one();
-        return QRCodeUtil.generateDeviceQRCode(deviceNo ,StrUtil.format(config.getValue(), deviceNo,modelNo),200, 200);
+        return QRCodeUtil.generateDeviceQRCode(deviceNo, StrUtil.format(config.getValue(), deviceNo, modelNo), 550, 550);
     }
 }
diff --git a/nflg-mobilebroken-common/src/main/java/com/nflg/mobilebroken/common/util/QRCodeUtil.java b/nflg-mobilebroken-common/src/main/java/com/nflg/mobilebroken/common/util/QRCodeUtil.java
index 96e6d7c5..7d6904a2 100644
--- a/nflg-mobilebroken-common/src/main/java/com/nflg/mobilebroken/common/util/QRCodeUtil.java
+++ b/nflg-mobilebroken-common/src/main/java/com/nflg/mobilebroken/common/util/QRCodeUtil.java
@@ -11,6 +11,7 @@ import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
 import java.util.Hashtable;
 
 public class QRCodeUtil {
@@ -48,16 +49,16 @@ public class QRCodeUtil {
 
     /**
      * 为图片添加边框和文字
-     *
      * @param qrImage 原始二维码图片
      * @param text    要添加的文字
      * @return 带边框和文字的新图片
      */
-    private static BufferedImage addBorderAndText(BufferedImage qrImage, String text) {
+    private static BufferedImage addBorderAndText(BufferedImage qrImage, String text) throws Exception {
         int borderSize = 1;
-        int extend=10;
-        int newWidth = qrImage.getWidth() + extend;
-        int newHeight = qrImage.getHeight() + extend;
+        int extend1 = 10;
+        int extend2 = 50;
+        int newWidth = qrImage.getWidth() + extend1;
+        int newHeight = qrImage.getHeight() + extend2;
         // 创建新画布（扩大尺寸以容纳边框）
         BufferedImage newImage = new BufferedImage(
                 newWidth,
@@ -65,11 +66,12 @@ public class QRCodeUtil {
                 BufferedImage.TYPE_INT_RGB
         );
         Graphics2D g = newImage.createGraphics();
+        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
         // 填充边框颜色
         g.setColor(Color.WHITE);
         g.fillRect(0, 0, newWidth, newHeight);
         // 绘制原始二维码（居中）
-        g.drawImage(qrImage, borderSize + extend / 2, borderSize, null);
+        g.drawImage(qrImage, borderSize + extend1 / 2, borderSize, null);
         // 绘制边框
         g.setColor(Color.BLACK);
         g.setStroke(new BasicStroke(borderSize));
@@ -79,13 +81,14 @@ public class QRCodeUtil {
         g.drawLine(0, newHeight - borderSize, newWidth, newHeight - borderSize);
         // 添加文字（居中显示）
         g.setColor(Color.BLACK);
-        g.setFont(new Font("Arial", Font.PLAIN, 14));
-        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+        InputStream is = QRCodeUtil.class.getResourceAsStream("/fonts/simsun.ttc");
+        Font baseFont = Font.createFont(Font.TRUETYPE_FONT, is).deriveFont(Font.BOLD, 45.0f);
+        g.setFont(baseFont);
         FontMetrics fm = g.getFontMetrics();
         int textWidth = fm.stringWidth(text);
         int x = (newImage.getWidth() - textWidth) / 2;
-        int y = newImage.getHeight() - 15;
-        g.drawString(text, x, y);
+        g.drawString(text, x, qrImage.getHeight() + (extend2 - fm.getAscent()) / 2);
+        is.close();
         g.dispose();
         return newImage;
     }