diff --git a/PaddleOCR4Android/src/main/cpp/ocr_crnn_process.cpp b/PaddleOCR4Android/src/main/cpp/ocr_crnn_process.cpp
index 44c34a2..4a3eb28 100644
--- a/PaddleOCR4Android/src/main/cpp/ocr_crnn_process.cpp
+++ b/PaddleOCR4Android/src/main/cpp/ocr_crnn_process.cpp
@@ -22,7 +22,10 @@
 
 const std::string CHARACTER_TYPE = "ch";
 const int MAX_DICT_LENGTH = 6624;
-const std::vector<int> REC_IMAGE_SHAPE = {3, 32, 320};
+//ch_PP-OCRv2
+//const std::vector<int> REC_IMAGE_SHAPE = {3, 32, 320};
+//ch_PP-OCRv3
+const std::vector<int> REC_IMAGE_SHAPE = {3, 48, 320};
 
 static cv::Mat crnn_resize_norm_img(cv::Mat img, float wh_ratio) {
   int imgC = REC_IMAGE_SHAPE[0];
@@ -30,7 +33,10 @@ static cv::Mat crnn_resize_norm_img(cv::Mat img, float wh_ratio) {
   int imgH = REC_IMAGE_SHAPE[1];
 
   if (CHARACTER_TYPE == "ch")
-    imgW = int(32 * wh_ratio);
+    //ch_PP-OCRv2
+    //imgW = int(32 * wh_ratio);
+    //ch_PP-OCRv3
+    imgW = int(48 * wh_ratio);
 
   float ratio = float(img.cols) / float(img.rows);
   int resize_w = 0;
diff --git a/app/src/main/assets/models/ch_PP-OCRv3/ch_PP-OCRv3_det_opt.nb b/app/src/main/assets/models/ch_PP-OCRv3/ch_PP-OCRv3_det_opt.nb
new file mode 100644
index 0000000..da632c6
Binary files /dev/null and b/app/src/main/assets/models/ch_PP-OCRv3/ch_PP-OCRv3_det_opt.nb differ
diff --git a/app/src/main/assets/models/ch_PP-OCRv3/ch_PP-OCRv3_rec_opt.nb b/app/src/main/assets/models/ch_PP-OCRv3/ch_PP-OCRv3_rec_opt.nb
new file mode 100644
index 0000000..e7bb0ae
Binary files /dev/null and b/app/src/main/assets/models/ch_PP-OCRv3/ch_PP-OCRv3_rec_opt.nb differ
diff --git a/app/src/main/java/com/equationl/paddleocr4android/app/MainActivity.kt b/app/src/main/java/com/equationl/paddleocr4android/app/MainActivity.kt
index bd87405..a7df5c1 100644
--- a/app/src/main/java/com/equationl/paddleocr4android/app/MainActivity.kt
+++ b/app/src/main/java/com/equationl/paddleocr4android/app/MainActivity.kt
@@ -34,12 +34,20 @@ class MainActivity : AppCompatActivity() {
             // 配置
             val config = OcrConfig()
             //config.labelPath = null
-
-            config.modelPath = "models/ch_PP-OCRv2" // 不使用 "/" 开头的路径表示安装包中 assets 目录下的文件，例如当前表示 assets/models/ocr_v2_for_cpu
+            //ch_PP-OCRv2
+            //config.modelPath = "models/ch_PP-OCRv2" // 不使用 "/" 开头的路径表示安装包中 assets 目录下的文件，例如当前表示 assets/models/ocr_v2_for_cpu
+            //ch_PP-OCRv3
+            config.modelPath = "models/ch_PP-OCRv3" // 不使用 "/" 开头的路径表示安装包中 assets 目录下的文件，例如当前表示 assets/models/ocr_v2_for_cpu
             //config.modelPath = "/sdcard/Android/data/com.equationl.paddleocr4android.app/files/models" // 使用 "/" 表示手机储存路径，测试时请将下载的三个模型放置于该目录下
             config.clsModelFilename = "cls.nb" // cls 模型文件名
+            //ch_PP-OCRv2
             config.detModelFilename = "det_db.nb" // det 模型文件名
-            config.recModelFilename = "rec_crnn.nb" // rec 模型文件名
+            //ch_PP-OCRv3
+            config.detModelFilename = "ch_PP-OCRv3_det_opt.nb" // det 模型文件名
+            //ch_PP-OCRv2
+            //config.recModelFilename = "rec_crnn.nb" // rec 模型文件名
+            //ch_PP-OCRv3
+            config.recModelFilename = "ch_PP-OCRv3_rec_opt.nb" // rec 模型文件名
 
             // 运行全部模型
             // 请根据需要配置，三项全开识别率最高；如果只开识别几乎无法正确识别，至少需要搭配检测或分类其中之一
@@ -130,4 +138,4 @@ class MainActivity : AppCompatActivity() {
         // 释放
         ocr.releaseModel()
     }
-}
\ No newline at end of file
+}