diff --git a/kernel/util/ocr.go b/kernel/util/ocr.go
index 4a75a7c2a..f4fc44a7d 100644
--- a/kernel/util/ocr.go
+++ b/kernel/util/ocr.go
@@ -242,8 +242,13 @@ func Tesseract(imgAbsPath string) (ret []map[string]interface{}) {
 		fields := strings.Split(line, "\t")
 		// 将字段名和字段值映射到一个 map 中
 		dataMap := make(map[string]interface{})
-		for i, header := range strings.Split(lines[0], "\t") {
-			dataMap[header] = fields[i]
+		headers := strings.Split(lines[0], "\t")
+		for i, header := range headers {
+			if i < len(fields) {
+				dataMap[header] = fields[i]
+			} else {
+				dataMap[header] = ""
+			}
 		}
 		ret = append(ret, dataMap)
 	}