diff --git a/src/main/kotlin/org/meogo/domain/post/domain/Post.kt b/src/main/kotlin/org/meogo/domain/post/domain/Post.kt
index e6638e1..1d2ee10 100644
--- a/src/main/kotlin/org/meogo/domain/post/domain/Post.kt
+++ b/src/main/kotlin/org/meogo/domain/post/domain/Post.kt
@@ -17,10 +17,10 @@ class Post(
     val id: Long = 0,
 
     @Column(nullable = false)
-    val title: String,
+    var title: String,
 
     @Column(nullable = false)
-    val content: String,
+    var content: String,
 
     @Column(name = "user_id", columnDefinition = "BINARY(16)")
     val userId: UUID,
@@ -32,13 +32,22 @@ class Post(
     val date: LocalDateTime,
 
     @Column(name = "school_id")
-    val schoolId: Int?,
+    var schoolId: Int?,
 
     @Column(name = "key_word")
-    val keyWord: String?,
+    var keyWord: String?,
 
-    val image: String?
+    var image: String?
 ) {
+    fun update(title: String, content: String, schoolId: Int? = null, keyWord: String? = null, image: String?): Post {
+        this.title = title
+        this.content = content
+        this.schoolId = schoolId
+        this.keyWord = keyWord
+        this.image = image
+        return this
+    }
+
     fun addGood() {
         this.good += 1
     }
diff --git a/src/main/kotlin/org/meogo/domain/post/present/PostController.kt b/src/main/kotlin/org/meogo/domain/post/presentation/PostController.kt
similarity index 74%
rename from src/main/kotlin/org/meogo/domain/post/present/PostController.kt
rename to src/main/kotlin/org/meogo/domain/post/presentation/PostController.kt
index 9e174a7..87307c1 100644
--- a/src/main/kotlin/org/meogo/domain/post/present/PostController.kt
+++ b/src/main/kotlin/org/meogo/domain/post/presentation/PostController.kt
@@ -1,14 +1,16 @@
-package org.meogo.domain.post.present
+package org.meogo.domain.post.presentation
 
 import lombok.RequiredArgsConstructor
-import org.meogo.domain.post.present.dto.request.PostRequest
+import org.meogo.domain.post.presentation.dto.request.PostRequest
 import org.meogo.domain.post.service.CreatePostService
 import org.meogo.domain.post.service.DeletePostService
+import org.meogo.domain.post.service.ModifyPostService
 import org.meogo.domain.post.service.QueryAllPostService
 import org.meogo.domain.post.service.QuerySchoolPostService
 import org.springframework.http.HttpStatus
 import org.springframework.web.bind.annotation.DeleteMapping
 import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PatchMapping
 import org.springframework.web.bind.annotation.PostMapping
 import org.springframework.web.bind.annotation.RequestMapping
 import org.springframework.web.bind.annotation.RequestParam
@@ -25,7 +27,8 @@ class PostController(
     private val createPostService: CreatePostService,
     private val queryAllPostService: QueryAllPostService,
     private val querySchoolPostService: QuerySchoolPostService,
-    private val deletePostService: DeletePostService
+    private val deletePostService: DeletePostService,
+    private val modifyPostService: ModifyPostService
 ) {
 
     @PostMapping
@@ -43,6 +46,15 @@ class PostController(
     fun delete(@RequestParam("post_id") id: Long) =
         deletePostService.execute(id)
 
+    @PatchMapping("/modify")
+    fun modify(
+        @RequestParam("post_id") id: Long,
+        @Valid
+        @RequestPart("request")
+        request: PostRequest,
+        @RequestPart("image") image: MultipartFile?
+    ) = modifyPostService.execute(id, request, image)
+
     @GetMapping("/query/all")
     fun queryAll() = queryAllPostService.execute()
 
diff --git a/src/main/kotlin/org/meogo/domain/post/present/dto/request/PostRequest.kt b/src/main/kotlin/org/meogo/domain/post/presentation/dto/request/PostRequest.kt
similarity index 81%
rename from src/main/kotlin/org/meogo/domain/post/present/dto/request/PostRequest.kt
rename to src/main/kotlin/org/meogo/domain/post/presentation/dto/request/PostRequest.kt
index 0455f33..5eb33c6 100644
--- a/src/main/kotlin/org/meogo/domain/post/present/dto/request/PostRequest.kt
+++ b/src/main/kotlin/org/meogo/domain/post/presentation/dto/request/PostRequest.kt
@@ -1,4 +1,4 @@
-package org.meogo.domain.post.present.dto.request
+package org.meogo.domain.post.presentation.dto.request
 
 import javax.validation.constraints.Size
 
diff --git a/src/main/kotlin/org/meogo/domain/post/present/dto/response/PostResponse.kt b/src/main/kotlin/org/meogo/domain/post/presentation/dto/response/PostResponse.kt
similarity index 92%
rename from src/main/kotlin/org/meogo/domain/post/present/dto/response/PostResponse.kt
rename to src/main/kotlin/org/meogo/domain/post/presentation/dto/response/PostResponse.kt
index 9a556e4..2c784f7 100644
--- a/src/main/kotlin/org/meogo/domain/post/present/dto/response/PostResponse.kt
+++ b/src/main/kotlin/org/meogo/domain/post/presentation/dto/response/PostResponse.kt
@@ -1,4 +1,4 @@
-package org.meogo.domain.post.present.dto.response
+package org.meogo.domain.post.presentation.dto.response
 
 import org.meogo.domain.post.domain.Post
 import org.meogo.global.s3.FileUtil
diff --git a/src/main/kotlin/org/meogo/domain/post/service/CreatePostService.kt b/src/main/kotlin/org/meogo/domain/post/service/CreatePostService.kt
index 816a72c..d3100e4 100644
--- a/src/main/kotlin/org/meogo/domain/post/service/CreatePostService.kt
+++ b/src/main/kotlin/org/meogo/domain/post/service/CreatePostService.kt
@@ -2,7 +2,7 @@ package org.meogo.domain.post.service
 
 import org.meogo.domain.post.domain.Post
 import org.meogo.domain.post.domain.PostRepository
-import org.meogo.domain.post.present.dto.request.PostRequest
+import org.meogo.domain.post.presentation.dto.request.PostRequest
 import org.meogo.domain.user.exception.UserNotFoundException
 import org.meogo.domain.user.facade.UserFacade
 import org.meogo.global.s3.FileUtil
diff --git a/src/main/kotlin/org/meogo/domain/post/service/ModifyPostService.kt b/src/main/kotlin/org/meogo/domain/post/service/ModifyPostService.kt
new file mode 100644
index 0000000..eb33a63
--- /dev/null
+++ b/src/main/kotlin/org/meogo/domain/post/service/ModifyPostService.kt
@@ -0,0 +1,42 @@
+package org.meogo.domain.post.service
+
+import org.meogo.domain.post.domain.PostRepository
+import org.meogo.domain.post.exception.PostNotFoundException
+import org.meogo.domain.post.presentation.dto.request.PostRequest
+import org.meogo.domain.user.exception.UserMisMatchException
+import org.meogo.domain.user.facade.UserFacade
+import org.meogo.global.s3.FileUtil
+import org.meogo.global.s3.Path
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+import org.springframework.web.multipart.MultipartFile
+
+@Service
+class ModifyPostService(
+    private val postRepository: PostRepository,
+    private val userFacade: UserFacade,
+    private val fileUtil: FileUtil
+) {
+    @Transactional
+    fun execute(postId: Long, request: PostRequest, image: MultipartFile?) {
+        val user = userFacade.currentUser()
+        val post = postRepository.findById(postId) ?: throw PostNotFoundException
+
+        if (user!!.id != post.userId) throw UserMisMatchException
+
+        val updateImage = handleImage(post.image, image)
+        val schoolId = if (!request.isOk || user.enrolledSchool == null) null else user.enrolledSchool
+        val keyWord = request.keyWord?.joinToString(separator = ",")
+
+        postRepository.save(post.update(request.title, request.content, schoolId, keyWord, updateImage))
+    }
+
+    private fun handleImage(image: String?, newImage: MultipartFile?): String? {
+        image?.let { fileUtil.delete(it, Path.COMMUNITY) }
+        return if (newImage == null) {
+            null
+        } else {
+            fileUtil.upload(newImage, Path.COMMUNITY)
+        }
+    }
+}
diff --git a/src/main/kotlin/org/meogo/domain/post/service/QueryAllPostService.kt b/src/main/kotlin/org/meogo/domain/post/service/QueryAllPostService.kt
index b605a56..3f74c99 100644
--- a/src/main/kotlin/org/meogo/domain/post/service/QueryAllPostService.kt
+++ b/src/main/kotlin/org/meogo/domain/post/service/QueryAllPostService.kt
@@ -1,7 +1,7 @@
 package org.meogo.domain.post.service
 
 import org.meogo.domain.post.domain.PostRepository
-import org.meogo.domain.post.present.dto.response.PostResponse
+import org.meogo.domain.post.presentation.dto.response.PostResponse
 import org.meogo.global.s3.FileUtil
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
diff --git a/src/main/kotlin/org/meogo/domain/post/service/QuerySchoolPostService.kt b/src/main/kotlin/org/meogo/domain/post/service/QuerySchoolPostService.kt
index a258abb..142e7b5 100644
--- a/src/main/kotlin/org/meogo/domain/post/service/QuerySchoolPostService.kt
+++ b/src/main/kotlin/org/meogo/domain/post/service/QuerySchoolPostService.kt
@@ -1,7 +1,7 @@
 package org.meogo.domain.post.service
 
 import org.meogo.domain.post.domain.PostRepository
-import org.meogo.domain.post.present.dto.response.PostResponse
+import org.meogo.domain.post.presentation.dto.response.PostResponse
 import org.meogo.global.s3.FileUtil
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional