diff --git a/src/features/projects/api/projectsApi.ts b/src/features/projects/api/projectsApi.ts
index 32139b2..85ad045 100644
--- a/src/features/projects/api/projectsApi.ts
+++ b/src/features/projects/api/projectsApi.ts
@@ -1,18 +1,20 @@
 import {
   addDoc,
+  arrayRemove,
+  arrayUnion,
   collection,
   doc,
   serverTimestamp,
-  deleteDoc,
   updateDoc,
-  arrayUnion,
-  arrayRemove,
 } from "firebase/firestore";
 
 import type { ApiResMessage } from "@entities/projects/types/firebase";
 
 import { db } from "@shared/firebase/firebase";
-import type { ProjectItemInsertReq } from "@shared/types/project";
+import {
+  RecruitmentStatus,
+  type ProjectItemInsertReq,
+} from "@shared/types/project";
 
 /** firebase projects에 item 등록 */
 export const insertProjectItem = async (
@@ -39,25 +41,27 @@ export const insertProjectItem = async (
   }
 };
 
-/** firebase projectsItem 삭제 */
-export const deleteProjectItem = async (id: string): Promise<ApiResMessage> => {
-  if (!window.confirm("정말로 삭제하시겠습니까?")) {
+/** project 모집 마감  */
+export const doneProjectItem = async (id: string): Promise<ApiResMessage> => {
+  if (!window.confirm("이대로 프로젝트를 모집을 마감 하시겠습니까?")) {
     return { success: false, message: "" };
   }
 
   try {
     const docRef = doc(db, "projects", id);
-    await deleteDoc(docRef);
+    await updateDoc(docRef, {
+      status: RecruitmentStatus.completed,
+    });
 
     return {
       success: true,
-      message: "프로젝트를 정상적으로 삭제하였습니다.",
+      message: "프로젝트가 정상적으로 마감 되었습니다.",
     };
   } catch (err) {
     console.log(err);
     return {
       success: false,
-      message: "프로젝트 삭제에 실패하였습니다.",
+      message: "프로젝트가 마감되지 않았습니다.",
     };
   }
 };
diff --git a/src/features/projects/queries/useProjectDelete.ts b/src/features/projects/queries/useProjectDone.ts
similarity index 51%
rename from src/features/projects/queries/useProjectDelete.ts
rename to src/features/projects/queries/useProjectDone.ts
index 4457292..8f0ef31 100644
--- a/src/features/projects/queries/useProjectDelete.ts
+++ b/src/features/projects/queries/useProjectDone.ts
@@ -1,45 +1,42 @@
 import { useMutation, type UseMutationResult } from "@tanstack/react-query";
-import { useNavigate } from "react-router-dom";
 
-import { deleteProjectItem } from "@features/projects/api/projectsApi";
+import { doneProjectItem } from "@features/projects/api/projectsApi";
 
 import type { ApiResMessage } from "@entities/projects/types/firebase";
 
+import queryClient from "@shared/react-query/queryClient";
 import { useAuthStore } from "@shared/stores/authStore";
 
 interface IDsType {
-  postID: string;
+  projectID: string;
   projectOwnerID: string;
 }
 
-const useProjectDelete = (): UseMutationResult<
-  ApiResMessage,
-  Error,
-  IDsType
-> => {
-  const Navigate = useNavigate();
+const useProjectDone = (): UseMutationResult<ApiResMessage, Error, IDsType> => {
   const user = useAuthStore((state) => state.user);
 
   return useMutation({
-    mutationFn: ({ postID, projectOwnerID }: IDsType) => {
+    mutationFn: ({ projectID, projectOwnerID }: IDsType) => {
       if (user?.uid !== projectOwnerID) {
         throw new Error("삭제 권한이 없습니다.");
       }
-      return deleteProjectItem(postID);
+      return doneProjectItem(projectID);
     },
-    onSuccess: (data) => {
+    onSuccess: (data, { projectID }) => {
       if (data.message) {
         alert(data.message);
       }
-      // 게시글 삭제 후 목록페이지로 이동
       if (data.success) {
-        Navigate("/project");
+        queryClient.invalidateQueries({
+          queryKey: ["project-detail", projectID],
+        });
+        return;
       }
     },
     onError: (err) => {
-      alert(err || "정상적으로 삭제되지 않았습니다.");
+      alert(err || "정상적으로 마감되지 않았습니다.");
       console.log(err);
     },
   });
 };
-export default useProjectDelete;
+export default useProjectDone;
diff --git a/src/features/projects/ui/ProjectDelete.tsx b/src/features/projects/ui/ProjectDelete.tsx
index 7a64e37..f8d57c2 100644
--- a/src/features/projects/ui/ProjectDelete.tsx
+++ b/src/features/projects/ui/ProjectDelete.tsx
@@ -2,31 +2,51 @@ import { Box, styled, Typography } from "@mui/material";
 import type { JSX } from "react";
 import { useParams } from "react-router-dom";
 
-import useProjectDelete from "@features/projects/queries/useProjectDelete";
+import useProjectDelete from "@features/projects/queries/useProjectDone";
 
-const ProjectDelete = ({
+export const ProjectDone = (): JSX.Element => {
+  return (
+    <MessageBtn className="gray">
+      <Typography fontWeight={600}>모집 마감</Typography>
+    </MessageBtn>
+  );
+};
+
+export const ProjectDones = ({
   projectOwnerID,
 }: {
   projectOwnerID: string;
 }): JSX.Element => {
-  const { id: postID } = useParams();
+  const { id: projectID } = useParams();
   const { mutate: projectdelete, isPending } = useProjectDelete();
 
-  const handleDeleteBtn = (): void => {
-    if (postID && !isPending) {
-      projectdelete({ postID, projectOwnerID });
+  const handleIsDone = (): void => {
+    if (projectID && !isPending) {
+      projectdelete({ projectID, projectOwnerID });
     }
   };
 
+  const handleModify = (): void => {
+    // Navigate '/project/insert로 이동'
+    // state로 폼 넘김
+    // 이푸 state 존재 여부에 따라 등록, 수정 나눌 예정
+    // form을 나눈다면 여기서 나눠서 보낼 수 있도록 ...
+    alert("아직없어염..");
+  };
+
   return (
-    <MessageBtn onClick={handleDeleteBtn}>
-      <Typography>프로젝트 삭제</Typography>
-    </MessageBtn>
+    <Box display={"flex"} gap={1}>
+      <MessageBtn className="white" onClick={handleModify}>
+        <Typography>수정하기</Typography>
+      </MessageBtn>
+
+      <MessageBtn className="red" onClick={handleIsDone}>
+        <Typography>모집 마감 하기</Typography>
+      </MessageBtn>
+    </Box>
   );
 };
 
-export default ProjectDelete;
-
 const MessageBtn = styled(Box)`
   flex: 1;
   display: flex;
@@ -34,12 +54,27 @@ const MessageBtn = styled(Box)`
   justify-content: center;
   height: 4rem;
   border-radius: 4px;
-  color: white;
-  background-color: tomato;
   transition: background-color 0.3s ease;
   cursor: pointer;
 
-  &:hover {
-    background-color: #e14b30;
+  &.white {
+    border: 1px solid #dddddd;
+    &:hover {
+      background-color: #f4f4f4;
+    }
+  }
+
+  &.red {
+    color: white;
+    background-color: tomato;
+    &:hover {
+      background-color: #e14b30;
+    }
+  }
+
+  &.gray {
+    color: #303030;
+    background-color: #f0f0f0;
+    cursor: default;
   }
 `;
diff --git a/src/features/projects/ui/ProjectLike.tsx b/src/features/projects/ui/ProjectLike.tsx
index 4ef2b4f..b7d3b62 100644
--- a/src/features/projects/ui/ProjectLike.tsx
+++ b/src/features/projects/ui/ProjectLike.tsx
@@ -67,13 +67,14 @@ const StatusBox = styled("div")`
   font-size: 12px;
   font-weight: 600;
   letter-spacing: 0.025em;
-  color: white;
-  border-radius: 50px;
+  border-radius: 4px;
 
   &.ing {
+    color: white;
     background-color: black;
   }
   &.done {
-    background-color: ${({ theme }) => theme.palette.primary.main};
+    color: #303030;
+    background-color: #f0f0f0;
   }
 `;
diff --git a/src/pages/project-detail/ui/ProjectDetailPage.tsx b/src/pages/project-detail/ui/ProjectDetailPage.tsx
index 23355ea..d72590b 100644
--- a/src/pages/project-detail/ui/ProjectDetailPage.tsx
+++ b/src/pages/project-detail/ui/ProjectDetailPage.tsx
@@ -3,9 +3,8 @@ import { type JSX } from "react";
 import { useNavigate, useParams } from "react-router-dom";
 
 import ProjectApplyForm from "@features/projects/ui/ProjectApplyForm";
-import ProjectDelete from "@features/projects/ui/ProjectDelete";
+import { ProjectDone, ProjectDones } from "@features/projects/ui/ProjectDelete";
 import ProjectLike from "@features/projects/ui/ProjectLike";
-import ProjectModify from "@features/projects/ui/ProjectModify";
 
 import useProjectsItem from "@entities/projects/queries/useProjectsItem";
 import ProjectApply from "@entities/projects/ui/post-info/ProjectApply";
@@ -123,11 +122,11 @@ const ProjectDetailPage = (): JSX.Element | null => {
           </CardBox>
           <CardBox>
             <ProjectApply applicants={project.applicants.length} />
-            {user?.uid !== project.projectOwner.id ? (
-              <Box display={"flex"} gap={1}>
-                <ProjectModify />
-                <ProjectDelete projectOwnerID={project?.projectOwner.id} />
-              </Box>
+
+            {project.status === "모집완료" ? (
+              <ProjectDone />
+            ) : user?.uid === project.projectOwner.id ? (
+              <ProjectDones projectOwnerID={project?.projectOwner.id} />
             ) : (
               <ProjectApplyForm applicants={project?.applicants || []} />
             )}