diff --git a/src/main/java/daybyquest/participant/domain/Participants.java b/src/main/java/daybyquest/participant/domain/Participants.java
index d50a92d..e3ad78f 100644
--- a/src/main/java/daybyquest/participant/domain/Participants.java
+++ b/src/main/java/daybyquest/participant/domain/Participants.java
@@ -10,12 +10,15 @@
 import daybyquest.group.domain.GroupUsers;
 import daybyquest.quest.domain.Quest;
 import daybyquest.quest.domain.Quests;
+import daybyquest.user.domain.User;
 import daybyquest.user.domain.Users;
 import org.springframework.stereotype.Component;
 
 @Component
 public class Participants {
 
+    public static final int PROMOTE_THRESHOLD = 50;
+
     private static final int MAX_DOING_COUNT = 15;
 
     private static final int MAX_CONTINUE_COUNT = 15;
@@ -81,4 +84,13 @@ public void validateCountByUserId(final Long userId) {
             throw new InvalidDomainException(EXCEED_MAX_QUEST);
         }
     }
+
+    public void increaseLinkedCount(final Long userId, final Long questId) {
+        final Participant participant = getByUserIdAndQuestId(userId, questId);
+        participant.increaseLinkedCount();
+        if (participant.getLinkedCount() == PROMOTE_THRESHOLD) {
+            final User user = users.getById(userId);
+            user.promote();
+        }
+    }
 }
diff --git a/src/main/java/daybyquest/participant/listener/IncreaseLinkedCountListener.java b/src/main/java/daybyquest/participant/listener/IncreaseLinkedCountListener.java
index 890a2b2..cb9e362 100644
--- a/src/main/java/daybyquest/participant/listener/IncreaseLinkedCountListener.java
+++ b/src/main/java/daybyquest/participant/listener/IncreaseLinkedCountListener.java
@@ -1,6 +1,5 @@
 package daybyquest.participant.listener;
 
-import daybyquest.participant.domain.Participant;
 import daybyquest.participant.domain.Participants;
 import daybyquest.post.domain.SuccessfullyPostLinkedEvent;
 import org.springframework.context.event.EventListener;
@@ -19,8 +18,6 @@ public IncreaseLinkedCountListener(final Participants participants) {
     @Transactional
     @EventListener
     public void listenSuccessfullyPostLinkedEvent(final SuccessfullyPostLinkedEvent event) {
-        final Participant participant = participants.getByUserIdAndQuestId(event.getUserId(),
-                event.getQuestId());
-        participant.increaseLinkedCount();
+        participants.increaseLinkedCount(event.getUserId(), event.getQuestId());
     }
 }
diff --git a/src/main/java/daybyquest/user/domain/User.java b/src/main/java/daybyquest/user/domain/User.java
index b5ec591..a0032fe 100644
--- a/src/main/java/daybyquest/user/domain/User.java
+++ b/src/main/java/daybyquest/user/domain/User.java
@@ -5,6 +5,9 @@
 import static daybyquest.global.error.ExceptionCode.INVALID_USER_NAME;
 import static daybyquest.global.error.ExceptionCode.INVALID_USER_USERNAME;
 import static daybyquest.global.error.ExceptionCode.NOT_UPDATABLE_USER;
+import static daybyquest.user.domain.UserState.ADMIN;
+import static daybyquest.user.domain.UserState.MODERATOR;
+import static daybyquest.user.domain.UserState.USER;
 import static jakarta.persistence.GenerationType.IDENTITY;
 
 import daybyquest.global.error.exception.InvalidDomainException;
@@ -76,7 +79,7 @@ public User(String username, String email, String name, Image image) {
         this.email = email;
         this.name = name;
         this.image = image;
-        this.state = UserState.USER;
+        this.state = USER;
         this.visibility = UserVisibility.PUBLIC;
         this.interests = new ArrayList<>();
         validate();
@@ -152,14 +155,20 @@ public void updateImage(Image image) {
     }
 
     public boolean isUser() {
-        return state == UserState.USER || state == UserState.MODERATOR;
+        return state == USER || state == MODERATOR;
     }
 
     public boolean isAdmin() {
-        return state == UserState.ADMIN;
+        return state == ADMIN;
     }
 
     public boolean isModerator() {
-        return state == UserState.MODERATOR;
+        return state == MODERATOR;
+    }
+
+    public void promote() {
+        if (state == USER) {
+            this.state = MODERATOR;
+        }
     }
 }
diff --git a/src/test/java/daybyquest/participant/domain/ParticipantsTest.java b/src/test/java/daybyquest/participant/domain/ParticipantsTest.java
index 7cda571..6d8a1bb 100644
--- a/src/test/java/daybyquest/participant/domain/ParticipantsTest.java
+++ b/src/test/java/daybyquest/participant/domain/ParticipantsTest.java
@@ -3,6 +3,9 @@
 import static daybyquest.participant.domain.ParticipantState.CONTINUE;
 import static daybyquest.participant.domain.ParticipantState.DOING;
 import static daybyquest.support.fixture.QuestFixtures.QUEST_1;
+import static daybyquest.support.fixture.UserFixtures.BOB;
+import static daybyquest.support.util.ParticipantUtils.게시물_연결_횟수를_지정한다;
+import static daybyquest.user.domain.UserState.MODERATOR;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.jupiter.api.Assertions.assertAll;
@@ -14,6 +17,7 @@
 import daybyquest.group.domain.GroupUsers;
 import daybyquest.quest.domain.Quest;
 import daybyquest.quest.domain.Quests;
+import daybyquest.user.domain.User;
 import daybyquest.user.domain.Users;
 import java.util.Optional;
 import org.junit.jupiter.api.Test;
@@ -228,4 +232,46 @@ public class ParticipantsTest {
         assertThatThrownBy(() -> participants.validateCountByUserId(userId))
                 .isInstanceOf(InvalidDomainException.class);
     }
+
+    @Test
+    void 링크된_게시물_수를_증가시킨다() {
+        // given
+        final Long userId = 1L;
+        final Long questId = 2L;
+        final Quest quest = QUEST_1.일반_퀘스트_생성(questId, null);
+        QUEST_1.보상_없이_세부사항을_설정한다(quest);
+        final Participant participant = new Participant(userId, quest);
+        given(participantRepository.findByUserIdAndQuestId(userId, questId))
+                .willReturn(Optional.of(participant));
+
+        // when
+        participants.increaseLinkedCount(userId, questId);
+
+        // then
+        assertAll(() -> {
+            then(participantRepository).should().findByUserIdAndQuestId(userId, questId);
+            assertThat(participant.getLinkedCount()).isEqualTo(1L);
+        });
+    }
+
+    @Test
+    void 링크된_게시물_수가_50개가_되면_사용자를_승급시킨다() {
+        // given
+        final Long userId = 1L;
+        final Long questId = 2L;
+        final User user = BOB.생성(userId);
+        final Quest quest = QUEST_1.일반_퀘스트_생성(questId, null);
+        QUEST_1.보상_없이_세부사항을_설정한다(quest);
+        final Participant participant = new Participant(userId, quest);
+        게시물_연결_횟수를_지정한다(participant, 49L);
+        given(participantRepository.findByUserIdAndQuestId(userId, questId))
+                .willReturn(Optional.of(participant));
+        given(users.getById(userId)).willReturn(user);
+
+        // when
+        participants.increaseLinkedCount(userId, questId);
+
+        // then
+        assertThat(user.getState()).isEqualTo(MODERATOR);
+    }
 }