diff --git a/src/main/java/org/sopt/week1/DiaryController.java b/src/main/java/org/sopt/week1/DiaryController.java
index ea52a8d..72df9b2 100644
--- a/src/main/java/org/sopt/week1/DiaryController.java
+++ b/src/main/java/org/sopt/week1/DiaryController.java
@@ -35,6 +35,10 @@ final void patch(final String id, final String body) {
         diaryService.patchDiary(id, body);
     }
 
+    final void restore(final String id){
+        diaryService.restoreDiary(id);
+    }
+
     enum Status {
         READY,
         RUNNING,
diff --git a/src/main/java/org/sopt/week1/DiaryRepository.java b/src/main/java/org/sopt/week1/DiaryRepository.java
index 9511b5b..098c943 100644
--- a/src/main/java/org/sopt/week1/DiaryRepository.java
+++ b/src/main/java/org/sopt/week1/DiaryRepository.java
@@ -1,13 +1,18 @@
 package org.sopt.week1;
 
+import java.time.LocalDate;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicLong;
+import org.sopt.week1.Main.UI.LimitEditException;
 
 public class DiaryRepository {
     private final Map<Long, String> storage = new ConcurrentHashMap<>();
+    private final Map<Long, String> deletedStorage = new ConcurrentHashMap<>();
+    private final Map<Long, Integer> patchCount = new ConcurrentHashMap<>(); //수정 횟수
+    private final Map<Long, LocalDate> patchDate = new ConcurrentHashMap<>(); // 마지막으로 수정한 날짜
     private final AtomicLong numbering = new AtomicLong();
 
     void save(final Diary diary){
@@ -17,6 +22,8 @@ void save(final Diary diary){
 
         // 저장 과정
         storage.put(id, diary.getBody());
+        patchCount.put(id, 0);
+        patchDate.put(id, LocalDate.now());
     }
 
     List<Diary> findAll() {
@@ -38,18 +45,47 @@ List<Diary> findAll() {
     }
 
     void delete(final Long id) {
-        storage.remove(id);
+        String removedDiary = storage.remove(id);
+        if(removedDiary != null){
+            deletedStorage.put(id, removedDiary);
+            patchCount.remove(id);  // 삭제 시 수정 횟수 제거
+            patchDate.remove(id);  // 삭제 시 날짜 제거
+        }
     }
 
     void patch(final Long id, final String body) {
-        /*
-        replace() : key 가 존재할 때에만 값을 변경
-        put() : key 가 존재하지 않으면 새로운 key-value 쌍을 추가
-         */
+        LocalDate today = LocalDate.now();
+        LocalDate last = patchDate.getOrDefault(id, today);
+
+        if(!today.equals(last)){
+            patchCount.put(id, 0);
+            patchDate.put(id, today);
+        }
+
+        int count = patchCount.getOrDefault(id, 0);
+
+        if(count >= 2){
+            throw new LimitEditException();
+        }
         storage.replace(id, body);
+        patchCount.put(id, count + 1);
+        patchDate.put(id, today);
+    }
+
+    void restore(final Long id) {
+        String beRestore = deletedStorage.remove(id);
+        if (beRestore != null) {
+            storage.put(id, beRestore);
+            patchCount.put(id, 0);
+            patchDate.put(id, LocalDate.now());
+        }
     }
 
     boolean existById(final Long id){
         return storage.containsKey(id);
     }
+
+    boolean existByDeletedId(final Long id){
+        return deletedStorage.containsKey(id);
+    }
 }
diff --git a/src/main/java/org/sopt/week1/DiaryService.java b/src/main/java/org/sopt/week1/DiaryService.java
index 8026a9a..de0ac4d 100644
--- a/src/main/java/org/sopt/week1/DiaryService.java
+++ b/src/main/java/org/sopt/week1/DiaryService.java
@@ -37,4 +37,13 @@ void patchDiary(final String id, final String body) {
             throw new IdNotExistException();
         }
     }
+
+    void restoreDiary(final String id) {
+        final Long diaryId = Long.parseLong(id);
+        if (diaryRepository.existByDeletedId(diaryId)) {
+            diaryRepository.restore(diaryId);
+        } else {
+            throw new IdNotExistException();
+        }
+    }
 }
diff --git a/src/main/java/org/sopt/week1/DiaryValidator.java b/src/main/java/org/sopt/week1/DiaryValidator.java
index 8027ee3..e45f161 100644
--- a/src/main/java/org/sopt/week1/DiaryValidator.java
+++ b/src/main/java/org/sopt/week1/DiaryValidator.java
@@ -3,6 +3,9 @@
 import org.sopt.week1.Main.UI.InvalidInputException;
 import org.sopt.week1.Main.UI.DiaryBodyLengthException;
 
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public class DiaryValidator {
     public static void validate(final String body){
         if(body.trim().isEmpty()){
@@ -12,4 +15,16 @@ public static void validate(final String body){
             throw new DiaryBodyLengthException();
         }
     }
+
+    public static int countGraphemeClusters(String body) {
+        String regex = "\\X";
+        Pattern pattern = Pattern.compile(regex);
+        Matcher matcher = pattern.matcher(body);
+
+        int count = 0;
+        while (matcher.find()) {
+            count++;
+        }
+        return count;
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/org/sopt/week1/Main.java b/src/main/java/org/sopt/week1/Main.java
index 6b21276..fd59825 100644
--- a/src/main/java/org/sopt/week1/Main.java
+++ b/src/main/java/org/sopt/week1/Main.java
@@ -29,6 +29,9 @@ class DiaryBodyLengthException extends UIException{
 
         class IdNotExistException extends UIException{
         }
+
+        class LimitEditException extends RuntimeException{
+        }
     }
 
     static class DiaryUI implements UI {
@@ -58,6 +61,8 @@ public void runRepeatedly() throws IOException {
                     ConsoleIO.printLine("일기의 본문은 30자 이내여야 합니다.");
                 } catch (IdNotExistException e) {
                     ConsoleIO.printLine("해당 Id 값이 존재하지 않습니다.");
+                } catch (LimitEditException e) {
+                    ConsoleIO.printLine("일기는 하루에 2번만 수정 가능합니다.");
                 }
 
                 if (isFinished()) {
@@ -104,6 +109,12 @@ private void run() throws IOException {
 
                             server.patch(inputId, inputBody);
                         }
+                        case "RESTORE" -> {
+                            ConsoleIO.printLine("복구할 일기의 id 를 입력하세요!");
+                            final String inputId = ConsoleIO.readLine();
+
+                            server.restore(inputId);
+                        }
                         case "FINISH" -> {
                             server.finish();
                         }
@@ -135,6 +146,7 @@ private String getMenu() {
                     - POST : 일기 작성하기
                     - DELETE : 일기 제거하기
                     - PATCH : 일기 수정하기
+                    - RESTORE : 일기 복구하기
                     """;
 
         }