diff --git a/src/components/common/CommentBottomSheet/GlobalCommentBottomSheet.styled.ts b/src/components/common/CommentBottomSheet/GlobalCommentBottomSheet.styled.ts
new file mode 100644
index 00000000..350e6589
--- /dev/null
+++ b/src/components/common/CommentBottomSheet/GlobalCommentBottomSheet.styled.ts
@@ -0,0 +1,70 @@
+import styled from '@emotion/styled';
+import { colors, typography } from '@/styles/global/global';
+
+export const Overlay = styled.div<{ isOpen: boolean }>`
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0, 0, 0, ${props => (props.isOpen ? '0.5' : '0')});
+  z-index: 1000;
+  display: flex;
+  align-items: flex-end;
+  justify-content: center;
+  transition: background-color 0.3s ease;
+  opacity: ${props => (props.isOpen ? 1 : 0)};
+  visibility: ${props => (props.isOpen ? 'visible' : 'hidden')};
+`;
+
+export const BottomSheet = styled.div<{ isOpen: boolean }>`
+  width: 100%;
+  max-width: 540px;
+  min-width: 360px;
+  background: ${colors.darkgrey.main};
+  border-radius: 20px 20px 0 0;
+  display: flex;
+  flex-direction: column;
+  max-height: 80vh;
+  min-height: 50vh;
+  transform: translateY(${props => (props.isOpen ? '0' : '100%')});
+  transition: transform 0.3s ease;
+  overflow: hidden;
+`;
+
+export const Header = styled.div`
+  padding: 20px;
+  padding-bottom: 10px;
+  flex-shrink: 0;
+`;
+
+export const Title = styled.h2`
+  color: ${colors.white};
+  font-size: 20px;
+  font-weight: ${typography.fontWeight.bold};
+  line-height: 24px;
+  margin: 0;
+`;
+
+export const Content = styled.div`
+  flex: 1;
+  overflow-y: auto;
+  min-height: 0;
+`;
+
+export const LoadingState = styled.div`
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 200px;
+  color: ${colors.grey[100]};
+  font-size: ${typography.fontSize.sm};
+  font-weight: ${typography.fontWeight.regular};
+`;
+
+export const InputSection = styled.div`
+  padding: 20px;
+  border-top: 1px solid ${colors.grey[400]};
+  flex-shrink: 0;
+  background: ${colors.darkgrey.main};
+`;
diff --git a/src/components/common/CommentBottomSheet/GlobalCommentBottomSheet.tsx b/src/components/common/CommentBottomSheet/GlobalCommentBottomSheet.tsx
new file mode 100644
index 00000000..58b274d1
--- /dev/null
+++ b/src/components/common/CommentBottomSheet/GlobalCommentBottomSheet.tsx
@@ -0,0 +1,146 @@
+import { useState, useEffect, useCallback } from 'react';
+import MessageInput from '@/components/today-words/MessageInput';
+import ReplyList from '@/components/common/Post/ReplyList';
+import { getComments, type CommentData } from '@/api/comments/getComments';
+import { postReply } from '@/api/comments/postReply';
+import { useReplyActions } from '@/hooks/useReplyActions';
+import { useReplyStore } from '@/stores/useReplyStore';
+import { useCommentBottomSheetStore } from '@/stores/useCommentBottomSheetStore';
+import {
+  Overlay,
+  BottomSheet,
+  Header,
+  Title,
+  Content,
+  LoadingState,
+  InputSection,
+} from './GlobalCommentBottomSheet.styled';
+
+const GlobalCommentBottomSheet = () => {
+  const { isOpen, postId, postType, closeCommentBottomSheet } = useCommentBottomSheetStore();
+  
+  const [commentList, setCommentList] = useState<CommentData[]>([]);
+  const [inputValue, setInputValue] = useState('');
+  const [isLoading, setIsLoading] = useState(false);
+  const [isSending, setIsSending] = useState(false);
+  
+  const { nickname, isReplying, cancelReply } = useReplyActions();
+  const { parentId } = useReplyStore();
+
+  // 댓글 목록 로드
+  const loadComments = useCallback(async () => {
+    if (!isOpen || !postId || !postType) return;
+
+    setIsLoading(true);
+    try {
+      const response = await getComments(postId, {
+        postType,
+        size: 20,
+      });
+
+      if (response.data) {
+        setCommentList(response.data.commentList);
+      }
+    } catch (error) {
+      console.error('댓글 로드 실패:', error);
+    } finally {
+      setIsLoading(false);
+    }
+  }, [isOpen, postId, postType]);
+
+  // 댓글 전송
+  const handleSendComment = async () => {
+    if (!inputValue.trim() || isSending || !postId || !postType) return;
+
+    setIsSending(true);
+    try {
+      const requestData = {
+        content: inputValue.trim(),
+        isReplyRequest: isReplying,
+        parentId: isReplying ? parentId : null,
+        postType: postType as 'FEED' | 'RECORD' | 'VOTE'
+      };
+
+      const response = await postReply(postId, requestData);
+      
+      if (response.isSuccess) {
+        setInputValue('');
+        cancelReply(); // 답글 상태 초기화
+        // 댓글 목록 새로고침
+        await loadComments();
+      }
+    } catch (error) {
+      console.error('댓글 전송 실패:', error);
+    } finally {
+      setIsSending(false);
+    }
+  };
+
+  // 답글 취소
+  const handleCancelReply = () => {
+    cancelReply();
+  };
+
+  // Overlay 클릭 처리
+  const handleOverlayClick = (e: React.MouseEvent) => {
+    if (e.target === e.currentTarget) {
+      closeCommentBottomSheet();
+    }
+  };
+
+  // 바텀시트가 열릴 때 댓글 로드
+  useEffect(() => {
+    if (isOpen) {
+      loadComments();
+    }
+  }, [isOpen, postId, loadComments]);
+
+  // 바텀시트가 닫힐 때 상태 초기화
+  useEffect(() => {
+    if (!isOpen) {
+      setInputValue('');
+      cancelReply();
+      setCommentList([]);
+    }
+  }, [isOpen, cancelReply]);
+
+  if (!isOpen) return null;
+
+  return (
+    <Overlay isOpen={isOpen} onClick={handleOverlayClick}>
+      <BottomSheet isOpen={isOpen}>
+        <Header>
+          <Title>댓글</Title>
+        </Header>
+        
+        <Content>
+          {isLoading ? (
+            <LoadingState>댓글을 불러오는 중...</LoadingState>
+          ) : (
+            <ReplyList 
+              commentList={commentList} 
+              onReload={loadComments}
+            />
+          )}
+        </Content>
+
+        <InputSection>
+          <MessageInput
+            placeholder={
+              isReplying ? `@${nickname}님에게 답글을 남겨보세요` : '댓글을 남겨보세요'
+            }
+            value={inputValue}
+            onChange={setInputValue}
+            onSend={handleSendComment}
+            isReplying={isReplying}
+            onCancelReply={handleCancelReply}
+            nickname={nickname}
+            disabled={isSending}
+          />
+        </InputSection>
+      </BottomSheet>
+    </Overlay>
+  );
+};
+
+export default GlobalCommentBottomSheet;
\ No newline at end of file
diff --git a/src/components/memory/RecordItem/RecordItem.tsx b/src/components/memory/RecordItem/RecordItem.tsx
index c65458d0..cea788b9 100644
--- a/src/components/memory/RecordItem/RecordItem.tsx
+++ b/src/components/memory/RecordItem/RecordItem.tsx
@@ -3,6 +3,7 @@ import { useParams, useNavigate } from 'react-router-dom';
 import type { Record } from '../../../types/memory';
 import TextRecord from './TextRecord';
 import PollRecord from './PollRecord';
+import { useCommentBottomSheetStore } from '@/stores/useCommentBottomSheetStore';
 import heartIcon from '../../../assets/memory/heart.svg';
 import heartFilledIcon from '../../../assets/memory/heart-filled.svg';
 import commentIcon from '../../../assets/memory/comment.svg';
@@ -52,6 +53,9 @@ const RecordItem = ({ record, shouldBlur = false }: RecordItemProps) => {
   // 좋아요 상태 관리 - record 객체에서 isLiked 속성 가져오기
   const [isLiked, setIsLiked] = useState(record.isLiked || false);
   const [currentLikeCount, setCurrentLikeCount] = useState(likeCount);
+  
+  // 전역 댓글 바텀시트
+  const { openCommentBottomSheet } = useCommentBottomSheetStore();
 
   // 길게 누르기 상태 관리
   const [isPressed, setIsPressed] = useState(false);
@@ -254,6 +258,11 @@ const RecordItem = ({ record, shouldBlur = false }: RecordItemProps) => {
     });
   }, [openConfirm, handlePinRecord]);
 
+  // 댓글 버튼 클릭 핸들러
+  const handleCommentClick = useCallback(() => {
+    openCommentBottomSheet(parseInt(id), type === 'poll' ? 'VOTE' : 'RECORD');
+  }, [openCommentBottomSheet, id, type]);
+
   // 길게 누르기 이벤트 핸들러
   const handleTouchStart = useCallback(
     (e: React.TouchEvent) => {
@@ -367,7 +376,10 @@ const RecordItem = ({ record, shouldBlur = false }: RecordItemProps) => {
           />
           <span>{currentLikeCount}</span>
         </ActionButton>
-        <ActionButton>
+        <ActionButton onClick={(e) => {
+          e.stopPropagation();
+          handleCommentClick();
+        }}>
           <img src={commentIcon} alt="댓글" />
           <span>{commentCount}</span>
         </ActionButton>
@@ -382,6 +394,7 @@ const RecordItem = ({ record, shouldBlur = false }: RecordItemProps) => {
           </ActionButton>
         )}
       </ActionSection>
+
     </Container>
   );
 };
diff --git a/src/pages/memory/Memory.tsx b/src/pages/memory/Memory.tsx
index baf4cf7d..083ae705 100644
--- a/src/pages/memory/Memory.tsx
+++ b/src/pages/memory/Memory.tsx
@@ -5,6 +5,7 @@ import MemoryHeader from '../../components/memory/MemoryHeader/MemoryHeader';
 import MemoryContent from '../../components/memory/MemoryContent/MemoryContent';
 import MemoryAddButton from '../../components/memory/MemoryAddButton/MemoryAddButton';
 import Snackbar from '../../components/common/Modal/Snackbar';
+import GlobalCommentBottomSheet from '../../components/common/CommentBottomSheet/GlobalCommentBottomSheet';
 import { Container, FixedHeader, ScrollableContent, FloatingElements } from './Memory.styled';
 import { getMemoryPosts } from '../../api/memory/getMemoryPosts';
 import type { GetMemoryPostsParams, Post, Record } from '../../types/memory';
@@ -295,6 +296,8 @@ const Memory = () => {
           onClose={() => setShowSnackbar(false)}
         />
       )}
+      
+      <GlobalCommentBottomSheet />
     </Container>
   );
 };
diff --git a/src/stores/useCommentBottomSheetStore.ts b/src/stores/useCommentBottomSheetStore.ts
new file mode 100644
index 00000000..8a458e5a
--- /dev/null
+++ b/src/stores/useCommentBottomSheetStore.ts
@@ -0,0 +1,26 @@
+import { create } from 'zustand';
+
+interface CommentBottomSheetState {
+  isOpen: boolean;
+  postId: number | null;
+  postType: 'RECORD' | 'VOTE' | null;
+}
+
+interface CommentBottomSheetActions {
+  openCommentBottomSheet: (postId: number, postType: 'RECORD' | 'VOTE') => void;
+  closeCommentBottomSheet: () => void;
+}
+
+export const useCommentBottomSheetStore = create<CommentBottomSheetState & CommentBottomSheetActions>((set) => ({
+  // 상태
+  isOpen: false,
+  postId: null,
+  postType: null,
+
+  // 액션
+  openCommentBottomSheet: (postId: number, postType: 'RECORD' | 'VOTE') =>
+    set({ isOpen: true, postId, postType }),
+  
+  closeCommentBottomSheet: () =>
+    set({ isOpen: false, postId: null, postType: null }),
+}));
\ No newline at end of file