diff --git a/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/dto/PromiseUserInfoVo.kt b/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/dto/PromiseUserInfoVo.kt
index d10d9400..008a7c76 100644
--- a/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/dto/PromiseUserInfoVo.kt
+++ b/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/dto/PromiseUserInfoVo.kt
@@ -1,5 +1,6 @@
 package com.depromeet.whatnow.api.promise.dto
 
+import com.depromeet.whatnow.api.interaction.dto.InteractionDto
 import com.depromeet.whatnow.domains.promiseuser.domain.PromiseUserType
 import com.depromeet.whatnow.domains.user.domain.User
 
@@ -8,13 +9,12 @@ data class PromiseUserInfoVo(
     val nickname: String,
     val isDefaultImg: Boolean,
     val promiseUserType: PromiseUserType,
-    // TODO : Interaction 리스트 ( ex. POOP : 1, MUSIC : 2, ... )
-    // val interactions: List<Interaction>
+    val interactions: List<InteractionDto>,
 ) {
-    //    interaction 기능 추가시 함께 추가할게요.
     companion object {
-        fun of(user: User, promiseUserType: PromiseUserType): PromiseUserInfoVo {
-            return PromiseUserInfoVo(user.profileImg, user.nickname, user.isDefaultImg, promiseUserType)
+        fun of(user: User, promiseUserType: PromiseUserType, interactionDtoList: List<InteractionDto>): PromiseUserInfoVo {
+            val list = interactionDtoList.sortedByDescending { interactionDto -> interactionDto.count }
+            return PromiseUserInfoVo(user.profileImg, user.nickname, user.isDefaultImg, promiseUserType, list)
         }
     }
 }
diff --git a/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCase.kt b/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCase.kt
index 378845e2..7fa5f1a5 100644
--- a/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCase.kt
+++ b/Whatnow-Api/src/main/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCase.kt
@@ -1,12 +1,14 @@
 package com.depromeet.whatnow.api.promise.usecase
 
 import com.depromeet.whatnow.annotation.UseCase
+import com.depromeet.whatnow.api.interaction.dto.InteractionDto
 import com.depromeet.whatnow.api.promise.dto.LocationCapture
 import com.depromeet.whatnow.api.promise.dto.PromiseDetailDto
 import com.depromeet.whatnow.api.promise.dto.PromiseFindDto
 import com.depromeet.whatnow.api.promise.dto.PromiseUserInfoVo
 import com.depromeet.whatnow.common.vo.UserInfoVo
 import com.depromeet.whatnow.config.security.SecurityUtils
+import com.depromeet.whatnow.domains.interaction.adapter.InteractionAdapter
 import com.depromeet.whatnow.domains.promise.adaptor.PromiseAdaptor
 import com.depromeet.whatnow.domains.promise.domain.Promise
 import com.depromeet.whatnow.domains.promise.domain.PromiseType
@@ -23,6 +25,7 @@ class PromiseReadUseCase(
     val promiseUserAdaptor: PromiseUserAdaptor,
     val userAdapter: UserAdapter,
     val userRepository: UserRepository,
+    val interactionAdapter: InteractionAdapter,
 ) {
     /**
      * method desc: 유저가 참여한 약속들을 약속 종류(BEFORE, PAST)에 따라 분리해서 조회
@@ -115,7 +118,15 @@ class PromiseReadUseCase(
             val promiseUsers = promiseUsersByPromiseId.filter { it.promiseId == promise.id }
             val promiseUserInfoVos = promiseUsers.mapNotNull { promiseUser ->
                 val user = users.find { it.id == promiseUser.userId }
-                user?.let { PromiseUserInfoVo.of(it, promiseUser.promiseUserType!!) }
+
+                // 유저의 Interaction 정보를 조회 (인터렉션 개수 순으로 내림차순 정렬)
+                val interactions =
+                    interactionAdapter.queryAllInteraction(promiseUser.promiseId, promiseUser.userId)
+                        .map { InteractionDto.from(it) }
+                        .sortedByDescending { interactionDto -> interactionDto.count }
+                user?.let {
+                    PromiseUserInfoVo.of(it, promiseUser.promiseUserType!!, interactions)
+                }
             }
 
             val timeOverLocations = promiseUsers.mapNotNull { promiseUser ->
diff --git a/Whatnow-Api/src/test/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCaseTest.kt b/Whatnow-Api/src/test/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCaseTest.kt
index 272baa33..c1478a6a 100644
--- a/Whatnow-Api/src/test/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCaseTest.kt
+++ b/Whatnow-Api/src/test/kotlin/com/depromeet/whatnow/api/promise/usecase/PromiseReadUseCaseTest.kt
@@ -1,5 +1,8 @@
 package com.depromeet.whatnow.api.promise.usecase
 
+import com.depromeet.whatnow.domains.interaction.adapter.InteractionAdapter
+import com.depromeet.whatnow.domains.interaction.domain.Interaction
+import com.depromeet.whatnow.domains.interaction.domain.InteractionType
 import com.depromeet.whatnow.domains.promise.adaptor.PromiseAdaptor
 import com.depromeet.whatnow.domains.promise.domain.Promise
 import com.depromeet.whatnow.domains.promise.domain.PromiseType
@@ -41,6 +44,9 @@ class PromiseReadUseCaseTest {
     @Mock
     private lateinit var userRepository: UserRepository
 
+    @Mock
+    private lateinit var interactionAdapter: InteractionAdapter
+
     @InjectMocks
     private lateinit var promiseReadUseCase: PromiseReadUseCase
 
@@ -52,6 +58,7 @@ class PromiseReadUseCaseTest {
             promiseUserAdaptor = promiseUserAdaptor,
             promiseAdaptor = promiseAdaptor,
             userAdapter = userAdapter,
+            interactionAdapter = interactionAdapter,
         )
         val securityContext = SecurityContextHolder.createEmptyContext()
         val authentication = UsernamePasswordAuthenticationToken("1", null, setOf(SimpleGrantedAuthority("ROLE_USER")))
@@ -92,10 +99,17 @@ class PromiseReadUseCaseTest {
                 id = 2,
             ),
         )
+        val interactions = listOf(
+            Interaction(InteractionType.HEART, 1, 1, 242),
+            Interaction(InteractionType.MUSIC, 1, 1, 1234),
+            Interaction(InteractionType.POOP, 1, 1, 12),
+            Interaction(InteractionType.STEP, 1, 1, 2934),
+        )
 
         Mockito.`when`(promiseUserAdaptor.findByUserId(userId)).thenReturn(promiseUsers)
         Mockito.`when`(promiseAdaptor.queryPromises(listOf(1, 2))).thenReturn(promises)
         Mockito.`when`(userAdapter.queryUsers(listOf(1))).thenReturn(users)
+        Mockito.`when`(interactionAdapter.queryAllInteraction(1, 1)).thenReturn(interactions)
 
         // When
         val result = promiseReadUseCase.findPromiseDetailByStatus(PromiseType.BEFORE)
@@ -110,5 +124,8 @@ class PromiseReadUseCaseTest {
         Assertions.assertEquals("Promise 2", result[1].title)
         Assertions.assertEquals(promiseTime2, result[1].date)
         Assertions.assertEquals(1, result[1].promiseUsers.size)
+
+        Assertions.assertEquals(2934, result[0].promiseUsers[0].interactions[0].count)
+        Assertions.assertEquals(1234, result[0].promiseUsers[0].interactions[1].count)
     }
 }