diff --git a/src/main/java/com/zhgd/xmgl/util/Base64Util.java b/src/main/java/com/zhgd/xmgl/util/Base64Util.java
index cc6759398..cf719be50 100644
--- a/src/main/java/com/zhgd/xmgl/util/Base64Util.java
+++ b/src/main/java/com/zhgd/xmgl/util/Base64Util.java
@@ -1,6 +1,7 @@
 package com.zhgd.xmgl.util;
 
 import cn.hutool.core.io.FileUtil;
+import cn.hutool.core.io.IORuntimeException;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.codec.binary.Base64;
 
@@ -72,8 +73,14 @@ public class Base64Util {
      * @param imgPath
      */
     public static String convertFileToBase64(String imgPath) {
-        byte[] fileBytes = FileUtil.readBytes(imgPath);
-        return Base64.encodeBase64String(fileBytes);
+        try {
+            byte[] fileBytes = FileUtil.readBytes(imgPath);
+            return Base64.encodeBase64String(fileBytes);
+        } catch (IORuntimeException e) {
+            log.debug("",e);
+            log.error("本地文件（图片、excel等）转换成Base64字符串错误:{}",e.getMessage());
+        }
+        return null;
     }
 
     /**
diff --git a/src/test/java/com/zhgd/xmgl/util/Base64UtilTest.java b/src/test/java/com/zhgd/xmgl/util/Base64UtilTest.java
new file mode 100644
index 000000000..e4e6a8b74
--- /dev/null
+++ b/src/test/java/com/zhgd/xmgl/util/Base64UtilTest.java
@@ -0,0 +1,36 @@
+package com.zhgd.xmgl.util;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mockStatic;
+
+@ExtendWith(MockitoExtension.class)
+class Base64UtilTest {
+
+    @Test
+    void convertFileToBase64_Success() {
+        String imgPath = TestResourceUtils.getTestImgPath();
+
+        // 执行测试
+        String result = Base64Util.convertFileToBase64(imgPath);
+
+        // 验证结果
+        assertNotNull(result);
+    }
+
+
+    @Test
+    void convertFileToBase64_FileReadError() {
+        String imgPath = "不存在.jpg";
+
+        // 执行测试
+        String result = Base64Util.convertFileToBase64(imgPath);
+
+        // 验证结果
+        assertNull(result);
+    }
+}
diff --git a/src/test/java/com/zhgd/xmgl/util/TestResourceUtils.java b/src/test/java/com/zhgd/xmgl/util/TestResourceUtils.java
new file mode 100644
index 000000000..562582134
--- /dev/null
+++ b/src/test/java/com/zhgd/xmgl/util/TestResourceUtils.java
@@ -0,0 +1,44 @@
+package com.zhgd.xmgl.util;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.io.File;
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.net.URLDecoder;
+import java.nio.file.Paths;
+
+public class TestResourceUtils {
+    /**
+     * 获取测试图片路径
+     *
+     * @return
+     */
+    @NotNull
+    public static String getTestImgPath() {
+        // 从 classpath 获取测试文件路径
+        ClassLoader classLoader = TestResourceUtils.class.getClassLoader();
+        URL resourceUrl = classLoader.getResource("images/test.jpg");
+
+        if (resourceUrl == null) {
+            throw new RuntimeException("测试图片文件未找到: images/test.jpg");
+        }
+
+        try {
+            // 使用 URI 方式处理 URL 编码（如 %20）
+            URI uri = resourceUrl.toURI();
+            return Paths.get(uri).toAbsolutePath().toString();
+        } catch (URISyntaxException e) {
+            // 回退方案：使用 URLDecoder 解码
+            try {
+                String decodedPath = URLDecoder.decode(resourceUrl.getFile(), "UTF-8");
+                return new File(decodedPath).getAbsolutePath();
+            } catch (UnsupportedEncodingException e2) {
+                throw new RuntimeException("路径解码失败", e2);
+            }
+        }
+    }
+
+}
diff --git a/src/test/resources/images/test.jpg b/src/test/resources/images/test.jpg
new file mode 100644
index 000000000..df8626e18
Binary files /dev/null and b/src/test/resources/images/test.jpg differ