diff --git a/src/main/java/com/example/exam/exam/service/mysql/IMysqlLocalServiceImpl.java b/src/main/java/com/example/exam/exam/service/mysql/IMysqlLocalServiceImpl.java
index 97f35ac..33e67ee 100644
--- a/src/main/java/com/example/exam/exam/service/mysql/IMysqlLocalServiceImpl.java
+++ b/src/main/java/com/example/exam/exam/service/mysql/IMysqlLocalServiceImpl.java
@@ -1504,7 +1504,19 @@ public class IMysqlLocalServiceImpl implements IMysqlLocalService {
             if (keywordValue != null && !keywordValue.isEmpty() && !matchedKeywords.contains(keywordValue)) {
                 // 使用正则，确保是完整单词（字段）匹配
                 String regex = keywordValue;
-                if (sql.contains(regex)) {
+                // 关键字标准化：连续空白替换成单空格，去掉首尾空格，并转小写
+                String regexKeyword = keywordValue.replaceAll("\\s+", " ").trim().toLowerCase();
+
+                // SQL标准化：连续空白替换成单空格，去掉首尾空格，并转小写
+                String cleanSql = sql.replaceAll("\\s+", " ").trim().toLowerCase();
+
+                // 使用正则匹配单词边界
+
+                String patternStr = "(?i)(^|[^\\w])" + Pattern.quote(regexKeyword) + "($|[^\\w])";
+                Pattern pattern = Pattern.compile(patternStr);
+                Matcher matcher = pattern.matcher(cleanSql);
+
+                if (matcher.find()) {
                     try {
                         totalScoreRate += Integer.parseInt(keyword.getScoreRate());
                         judgementStr = HtmlAppender.appendHtmlLine(judgementStr, "【✅】【关键字】 【" + regex + "】 " );