diff --git a/src/components/Group/GroupFeed/GroupFeed.jsx b/src/components/Group/GroupFeed/GroupFeed.jsx
index 4b6e5458..db3d2198 100644
--- a/src/components/Group/GroupFeed/GroupFeed.jsx
+++ b/src/components/Group/GroupFeed/GroupFeed.jsx
@@ -18,8 +18,15 @@ const GroupFeed = ({ groupId, leaderName }) => {
 	const [optionMenuOpenedFeedIndex, setOptionMenuOpenedFeedIndex] =
 		useState(null);
 
+	const [isLoading, setIsLoading] = useState(true);
+
+	const groupPostFetching = async () => {
+		await dispatch(getGroupAllPosts(groupId));
+		setIsLoading(false);
+	};
+
 	useEffect(() => {
-		dispatch(getGroupAllPosts(groupId));
+		groupPostFetching();
 	}, []);
 
 	const handleOnView = () => {
@@ -28,6 +35,10 @@ const GroupFeed = ({ groupId, leaderName }) => {
 		}
 	};
 
+	if (isLoading) {
+		return <div>로딩중</div>;
+	}
+
 	if (allGroupPosts.length === 0) {
 		return <EmptyFeed />;
 	}
diff --git a/src/components/Group/GroupManagement/GroupMemberManagement/GroupMemberManagement.jsx b/src/components/Group/GroupManagement/GroupMemberManagement/GroupMemberManagement.jsx
index 4fbb7127..3cfe2cfa 100644
--- a/src/components/Group/GroupManagement/GroupMemberManagement/GroupMemberManagement.jsx
+++ b/src/components/Group/GroupManagement/GroupMemberManagement/GroupMemberManagement.jsx
@@ -150,11 +150,12 @@ const GroupMemberManagement = ({ groupId, memberList }) => {
 									memberInfo.accessLevel === data.accessLevel && (
 										<span key={data.accessLevel}>
 											{data.icon}
-											{data.accessLevel}
+											{memberInfo.accessLevel}
 											<AccessArrowIcon />
 										</span>
 									),
 							)}
+
 							{isAccessChangeOpenIndex === memberInfo.member.userId && (
 								<AccessLevelUl>
 									{ACCESS_LEVEL_DATA.map((data) => (
diff --git a/src/features/group/group-slice.js b/src/features/group/group-slice.js
index 6f817be1..1d2ade4b 100644
--- a/src/features/group/group-slice.js
+++ b/src/features/group/group-slice.js
@@ -164,10 +164,23 @@ const groupSlice = createSlice({
 				state.isMemberListLoading = false;
 				state.groupMemberList = payload;
 			})
-			.addCase(changeAccessLevel.fulfilled, (state) => {
-				state.isLoading = false;
-				toast.success("그룹원 권한이 변경되었습니다.");
-			})
+			.addCase(
+				changeAccessLevel.fulfilled,
+				(
+					state,
+					{
+						meta: {
+							arg: { userId, accessLevel },
+						},
+					},
+				) => {
+					state.isLoading = false;
+					toast.success("그룹원 권한이 변경되었습니다.");
+					state.groupMemberList[
+						state.groupMemberList.findIndex((el) => el.member.userId === userId)
+					].accessLevel = accessLevel;
+				},
+			)
 			.addCase(withdrawalGroup.fulfilled, (state) => {
 				state.isLoading = false;
 				toast.error("그룹 탈퇴에 성공하였습니다");