diff --git a/src/components/CommentInput.tsx b/src/components/CommentInput.tsx
index b147ad6..5b16441 100644
--- a/src/components/CommentInput.tsx
+++ b/src/components/CommentInput.tsx
@@ -71,7 +71,7 @@ const BoardCommentInput = (props: PropsType) => {
           if (e.keyCode === 13 && !e.shiftKey) {
             e.preventDefault()
 
-            if (props.type !== 'add' && e.currentTarget.value.replace(/ /g, '').length !== 0) {
+            if (props.type !== 'add' && e.currentTarget.value.replace(/\n/g, '').replace(/\s/g, '').length !== 0) {
               try {
                 postComment(props.boardId, e.currentTarget.value, props.commentId)
                 dispatch(setCommentInput({ commentNum: -1 }))
@@ -84,9 +84,9 @@ const BoardCommentInput = (props: PropsType) => {
                 })
               }
               e.currentTarget.value = ''
-            } else if (e.currentTarget.value.replace(/ /g, '').length !== 0) {
+            } else if (e.currentTarget.value.replace(/\n/g, '').replace(/\s/g, '').length !== 0) {
               addCommentFn()
-            } else if (e.currentTarget.value.replace(/ /g, '').length === 0) {
+            } else if (e.currentTarget.value.replace(/\n/g, '').replace(/\s/g, '').length === 0) {
               openModal({
                 isModalOpen: true,
                 isConfirm: false,
@@ -107,7 +107,7 @@ const BoardCommentInput = (props: PropsType) => {
             className="add_comment_btn"
             onClick={() => {
               const comment = commentValue.current as HTMLTextAreaElement
-              if (comment.value.replace(/ /g, '') !== '') {
+              if (comment.value.replace(/\n/g, '').replace(/\s/g, '').length !== 0) {
                 addCommentFn()
               } else {
                 openModal({
@@ -163,6 +163,10 @@ const InputEl = styled.div`
     padding-left: 15px;
     padding-right: 50px;
     resize: none;
+
+    &::-webkit-scrollbar {
+      display: none;
+    }
   }
 
   & > button,