diff --git a/src/apis/emotion/emotion.queries.ts b/src/apis/emotion/emotion.queries.ts
index 35fa958..21ebb66 100644
--- a/src/apis/emotion/emotion.queries.ts
+++ b/src/apis/emotion/emotion.queries.ts
@@ -7,11 +7,12 @@ import {
   createEmotionLogToday,
   getEmotionLogsMonthly,
 } from './emotion.service';
+import { EmotionLog } from './emotion.type';
 
 export const useEmotionLogToday = (userId: number | null) => {
   return useQuery({
     queryKey: ['emotion', 'today', userId],
-    queryFn: () => (userId ? getEmotionLogToday({ userId }) : Promise.resolve(null)),
+    queryFn: () => getEmotionLogToday({ userId: userId! }),
     enabled: userId !== null,
     retryOnMount: false,
   });
@@ -21,11 +22,29 @@ export const useCreateEmotionLog = (userId: number | null) => {
   const queryClient = useQueryClient();
   return useMutation({
     mutationFn: (data: { emotion: Emotion }) => createEmotionLogToday(data),
-    onSuccess: () => {
-      if (userId !== null) {
-        queryClient.invalidateQueries({ queryKey: ['emotion'] });
+    onMutate: async (data: { emotion: Emotion }) => {
+      if (userId === null) return;
+
+      await queryClient.cancelQueries({ queryKey: ['emotion', 'today', userId] });
+      const previousData = queryClient.getQueryData<EmotionLog>(['emotion', 'today', userId]);
+
+      if (previousData) {
+        queryClient.setQueryData<EmotionLog>(['emotion', 'today', userId], {
+          ...previousData,
+          emotion: data.emotion,
+        });
+      }
+
+      return { previousData };
+    },
+    onError: (_, __, context) => {
+      if (context?.previousData) {
+        queryClient.setQueryData<EmotionLog>(['emotion', 'today', userId], context.previousData);
       }
     },
+    onSuccess: async () => {
+      queryClient.invalidateQueries({ queryKey: ['emotion'] });
+    },
   });
 };
 
diff --git a/src/app/(after-login)/epigrams/_components/TodayEmotion.tsx b/src/app/(after-login)/epigrams/_components/TodayEmotion.tsx
index 9c2151f..ad53e34 100644
--- a/src/app/(after-login)/epigrams/_components/TodayEmotion.tsx
+++ b/src/app/(after-login)/epigrams/_components/TodayEmotion.tsx
@@ -16,7 +16,6 @@ export default function TodayEmotion() {
 
   const handleEmotionClick = (emotion: Emotion) => {
     if (isPending) return;
-
     createEmotion({ emotion });
   };
 
@@ -33,6 +32,7 @@ export default function TodayEmotion() {
             emotion={emotion}
             onEmotionClick={handleEmotionClick}
             label='오늘의 감정을 선택해 주세요'
+            isLoading={isPending}
           />
         </motion.div>
       )}
diff --git a/src/app/(after-login)/mypage/_components/MyEmotions.tsx b/src/app/(after-login)/mypage/_components/MyEmotions.tsx
index 3dd30d8..ae50528 100644
--- a/src/app/(after-login)/mypage/_components/MyEmotions.tsx
+++ b/src/app/(after-login)/mypage/_components/MyEmotions.tsx
@@ -20,7 +20,6 @@ export default function MyEmotions() {
 
   const handleEmotionClick = (emotion: Emotion) => {
     if (isPending) return;
-
     createEmotion({ emotion });
   };
 
@@ -31,6 +30,7 @@ export default function MyEmotions() {
         onEmotionClick={handleEmotionClick}
         label='오늘의 감정'
         showDate
+        isLoading={isPending}
       />
       <MonthlyLogs
         moodData={moodData}
diff --git a/src/components/TodayMood.tsx b/src/components/TodayMood.tsx
index 554c04a..bee56a5 100644
--- a/src/components/TodayMood.tsx
+++ b/src/components/TodayMood.tsx
@@ -12,7 +12,8 @@ interface TodayMoodProps {
   labelClassName?: string;
   showDate?: boolean;
   emotion?: EmotionLog | null;
-  onEmotionClick: (emotion: Emotion) => void;
+  onEmotionClick: (emotion: Emotion) => void | Promise<void>;
+  isLoading?: boolean;
 }
 
 export default function TodayMood({
@@ -22,6 +23,7 @@ export default function TodayMood({
   showDate = false,
   emotion,
   onEmotionClick,
+  isLoading = false,
 }: TodayMoodProps) {
   const selectedEmotion = emotion?.emotion || null;
   const today = format(new Date(), 'yyyy.MM.dd');
@@ -34,20 +36,22 @@ export default function TodayMood({
         </label>
         {showDate && <span className='text-lg text-blue-400 lg:text-xl'>{today}</span>}
       </div>
-      <div
-        className={cn(
-          'mt-[24px] flex h-[84px] w-full justify-center gap-4 md:h-[96px] lg:mt-[48px] lg:h-[136px] lg:gap-6',
-          containerClassName,
-        )}
-      >
-        {Object.values(EMOTION).map((emotion) => (
-          <EmojiButton
-            key={emotion}
-            name={emotion}
-            onClick={() => onEmotionClick(emotion)}
-            selected={selectedEmotion === emotion}
-          />
-        ))}
+      <div className='relative'>
+        <div
+          className={cn(
+            'mt-[24px] flex h-[84px] w-full justify-center gap-4 md:h-[96px] lg:mt-[48px] lg:h-[136px] lg:gap-6',
+            containerClassName,
+          )}
+        >
+          {Object.values(EMOTION).map((emotion) => (
+            <EmojiButton
+              key={emotion}
+              name={emotion}
+              onClick={() => onEmotionClick(emotion)}
+              selected={selectedEmotion === emotion}
+            />
+          ))}
+        </div>
       </div>
     </>
   );