diff --git a/src/main/java/com/easyvel/server/tag/TagController.java b/src/main/java/com/easyvel/server/tag/TagController.java
index 06c8dc5..e73d142 100644
--- a/src/main/java/com/easyvel/server/tag/TagController.java
+++ b/src/main/java/com/easyvel/server/tag/TagController.java
@@ -73,6 +73,7 @@ public List<PostDto> getUserTagPostList(@RequestParam String search,
     }
 
     @ApiOperation(value = "현재 인기있는 태그 목록", notes = "vol 파라미터에 받을 태그 수량을 입력")
+    @EasyvelTokenApiImplicitParams
     @GetMapping("/hot-tag")
     public TagList getHotTagList(@RequestParam(defaultValue = "10") int vol) throws IOException {
         return tagService.getHotTagList(vol);
diff --git a/src/main/java/com/easyvel/server/tag/TagService.java b/src/main/java/com/easyvel/server/tag/TagService.java
index c0d034f..b3925e5 100644
--- a/src/main/java/com/easyvel/server/tag/TagService.java
+++ b/src/main/java/com/easyvel/server/tag/TagService.java
@@ -21,6 +21,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.regex.Pattern;
 
 @Slf4j
 @Service
@@ -43,6 +44,8 @@ public void addTag(String uid, String tagName) {
         User user = getUserByUid(uid);
         Tag tag = getElseMakeTag(tagName);
 
+        checkBlankAndSpecial(tagName);
+
         if (containsTag(user, tag))
             throw new IllegalArgumentException("이미 추가한 태그입니다.");
 
@@ -50,6 +53,13 @@ public void addTag(String uid, String tagName) {
         userTagRepository.save(userTag);
     }
 
+    //Todo: 다른 곳에서도 필요할지도..? 이후 추가 적용하기
+    private void checkBlankAndSpecial(String tagName) {
+        String pattern = "^[0-9|a-z|A-Z|ㄱ-ㅎ|ㅏ-ㅣ|가-힣]*$";
+        if (!Pattern.matches(pattern, tagName))
+            throw new IllegalArgumentException("공백, 특수문자는 허용되지 않습니다.");
+    }
+
     public void deleteTag(String uid, String tagName) {
         User user = getUserByUid(uid);
         Tag tag = getElseMakeTag(tagName);
@@ -69,6 +79,7 @@ public void deleteTag(String uid, String tagName) {
      * @throws IOException
      */
     public List<PostDto> getPostDtoListByTag(String uid, String tag) throws IOException {
+        //Todo: 없는 태그를 긁어오려할 경우 체크하는 로직 만들기
         List<String> userSubscribeList = getSubscribeNameList(uid);
         Elements postsElements = getTagPostsElements(tag);