diff --git a/tag_generator.sh b/tag_generator.sh
index 9ba43254..acbca910 100755
--- a/tag_generator.sh
+++ b/tag_generator.sh
@@ -69,18 +69,30 @@ else
   echo "compare_json:$compare_json\n"
   new_patch=$patch
   new_minor=$minor
+  declare -A seen_commits  # 用于去重
   while IFS= read -r commit_json; do
     commit_id=$(echo "$commit_json" | jq -r '.id')
+    commit_title=$(echo "$commit_json" | jq -r '.title')
     commit_message=$(echo "$commit_json" | jq -r '.message')
+
+    # commit id 去重
+    if [[ -n "${seen_commits[$commit_id]}" ]]; then
+      continue
+    fi
+    seen_commits[$commit_id]=1
+
+    # 跳过 Merge 和 Revert 提交
+    if [[ "$commit_title" =~ ^Merge ]] || [[ "$commit_title" =~ ^Revert ]]; then
+      continue
+    fi
+
     echo "----$commit_message"
-    if [[ "$commit_message" =~ ("feat:"*) ]]  && [[ $new_minor == $minor ]]; then
+    if [[ "$commit_message" =~ ^feat: ]] && [[ $new_minor == $minor ]]; then
         ((new_minor++))
-    elif [[ "$commit_message" =~ ("fix:"*) ]]; then
-        ((new_patch++))
-    elif [[ ! "$commit_message" =~ ("Merge"* | "Revert"*) ]]; then
+    elif [[ "$commit_message" =~ ^fix: ]]; then
         ((new_patch++))
     fi
-  done < <(echo "$compare_json" | jq -c '.commits[] | {id: .id, message: .message}')
+  done < <(echo "$compare_json" | jq -c '.commits[] | {id: .id, title: .title, message: .message}')
   next_tag="v${major}.${new_minor}.${new_patch}_sky"
 fi