diff --git a/app/modules/project/router.py b/app/modules/project/router.py
index b4d8def..b372577 100644
--- a/app/modules/project/router.py
+++ b/app/modules/project/router.py
@@ -319,6 +319,8 @@ async def index(request: Request) -> HTMLResponse:
         include_archived=False,
         member_email=None if admin else user["email"],
     )
+    # 완료된 프로젝트는 비활성으로 맨 끝에 (홈 카드 정렬). 안정 정렬.
+    projects = sorted(projects, key=lambda p: 1 if p.get("status") == "completed" else 0)
     tree = _build_tree(projects)
     my_tasks = st.list_tasks(assignee_email=user["email"], limit=500)
     # 내 업무를 프로젝트별로 묶어 트리로 표시
diff --git a/app/modules/project/store.py b/app/modules/project/store.py
index ff398f4..7abf8b5 100644
--- a/app/modules/project/store.py
+++ b/app/modules/project/store.py
@@ -22,7 +22,7 @@ PRIORITIES: tuple[str, ...] = ("low", "normal", "high")
 PRIORITY_LABELS: dict[str, str] = {"low": "낮음", "normal": "보통", "high": "높음"}
 
 # 프로젝트 상태
-PROJECT_STATUSES: tuple[str, ...] = ("active", "archived")
+PROJECT_STATUSES: tuple[str, ...] = ("active", "completed", "archived")
 
 # 멤버 역할
 MEMBER_ROLES: tuple[str, ...] = ("manager", "member")
diff --git a/app/modules/project/templates/project/index.html b/app/modules/project/templates/project/index.html
index bd97bde..c568f78 100644
--- a/app/modules/project/templates/project/index.html
+++ b/app/modules/project/templates/project/index.html
@@ -1,7 +1,7 @@
 {% extends "erp_base.html" %}
 
 {% block head_extra %}
-<link rel="stylesheet" href="/static/project.css?v=20260625q" />
+<link rel="stylesheet" href="/static/project.css?v=20260625r" />
 <link rel="stylesheet" href="/static/vendor/material-symbols/material-symbols.css" />
 {% endblock %}
 
@@ -14,6 +14,12 @@
       <div class="pj-section-head">
         <h2>프로젝트</h2>
         <div class="pj-toolbar-right">
+          {% set done_count = tree | selectattr('status', 'equalto', 'completed') | list | length %}
+          {% if done_count %}
+          <button type="button" class="pj-btn" id="pj-toggle-done" data-count="{{ done_count }}">
+            완료 {{ done_count }}개 숨기기
+          </button>
+          {% endif %}
           <a class="pj-bell" href="/project/inbox" title="알림센터">
             <span class="material-symbols-outlined">notifications</span>
             <span class="pj-bell-badge" id="pj-bell-badge" hidden>0</span>
@@ -34,19 +40,35 @@
       </div>
       {% endif %}
 
-      <div class="pj-project-grid">
+      <div class="pj-project-grid" id="pj-project-grid">
         {% for p in tree %}
-        <a class="pj-project-card" href="/project/p/{{ p.id }}"
-           style="--pj-color: {{ p.color }}">
-          <span class="pj-project-dot"></span>
-          <div class="pj-project-body">
-            <div class="pj-project-name">{{ p.name }}</div>
-            {% if p.description %}<div class="pj-project-desc">{{ p.description }}</div>{% endif %}
-            <div class="pj-project-meta">
-              {% if p.due_date %}<span class="pj-chip">마감 {{ p.due_date }}</span>{% endif %}
+        <div class="pj-project-card {% if p.status == 'completed' %}is-done{% endif %}"
+             style="--pj-color: {{ p.color }}"
+             data-id="{{ p.id }}"
+             data-name="{{ p.name }}"
+             data-desc="{{ p.description or '' }}"
+             data-start="{{ p.start_date or '' }}"
+             data-due="{{ p.due_date or '' }}"
+             data-color="{{ p.color }}"
+             data-status="{{ p.status or 'active' }}">
+          <a class="pj-project-cardlink" href="/project/p/{{ p.id }}">
+            <span class="pj-project-dot"></span>
+            <div class="pj-project-body">
+              <div class="pj-project-name">{{ p.name }}
+                {% if p.status == 'completed' %}<span class="pj-chip pj-chip-sm">완료</span>{% endif %}
+              </div>
+              {% if p.description %}<div class="pj-project-desc">{{ p.description }}</div>{% endif %}
+              <div class="pj-project-meta">
+                {% if p.due_date %}<span class="pj-chip">마감 {{ p.due_date }}</span>{% endif %}
+              </div>
             </div>
-          </div>
-        </a>
+          </a>
+          {% if is_admin %}
+          <button type="button" class="pj-icon-btn pj-card-edit" title="프로젝트 수정">
+            <span class="material-symbols-outlined">edit</span>
+          </button>
+          {% endif %}
+        </div>
         {% endfor %}
       </div>
     </section>
@@ -111,10 +133,36 @@
     </div>
   </div>
 </div>
+
+<!-- 프로젝트 수정 모달 -->
+<div class="pj-modal" id="pj-modal-edit" hidden>
+  <div class="pj-modal-card">
+    <h3>프로젝트 수정</h3>
+    <input type="hidden" id="pj-e-id" />
+    <label>이름<input type="text" id="pj-e-name" placeholder="프로젝트 이름" /></label>
+    <label>설명<textarea id="pj-e-desc" rows="2"></textarea></label>
+    <div class="pj-form-row">
+      <label>시작일<input type="date" id="pj-e-start" /></label>
+      <label>마감일<input type="date" id="pj-e-due" /></label>
+    </div>
+    <label>색상
+      <span class="pj-color-palette" id="pj-e-colors"></span>
+    </label>
+    <label class="pj-time-toggle">
+      <input type="checkbox" id="pj-e-done" /> 프로젝트 완료 (목록 끝으로 이동·비활성)
+    </label>
+    <div class="pj-modal-actions">
+      <button type="button" class="pj-btn pj-btn-danger" id="pj-delete-project">삭제</button>
+      <span style="flex:1"></span>
+      <button type="button" class="pj-btn" data-close>취소</button>
+      <button type="button" class="pj-btn pj-btn-primary" id="pj-save-edit">저장</button>
+    </div>
+  </div>
+</div>
 {% endif %}
 
 <script>
   window.PJ_COLORS = {{ ["#4573d2","#37a3a3","#62a420","#e8a33d","#e8384f","#aa62e3","#f06a6a","#5a6772"] | tojson }};
 </script>
-<script src="/static/project.js?v=20260625q" defer></script>
+<script src="/static/project.js?v=20260625r" defer></script>
 {% endblock %}
diff --git a/app/static/project.css b/app/static/project.css
index bfde81d..45a13aa 100644
--- a/app/static/project.css
+++ b/app/static/project.css
@@ -35,10 +35,26 @@
 
 .pj-project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
 .pj-project-card {
-  display: flex; gap: 12px; padding: 16px; border: 1px solid #e7e9ec; border-radius: 14px;
-  background: #fff; text-decoration: none; color: inherit; transition: box-shadow .14s, transform .1s;
+  position: relative; border: 1px solid #e7e9ec; border-radius: 14px;
+  background: #fff; transition: box-shadow .14s, transform .1s;
 }
 .pj-project-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); transform: translateY(-1px); }
+.pj-project-cardlink { display: flex; gap: 12px; padding: 16px; text-decoration: none; color: inherit; }
+/* 완료 프로젝트 — 비활성(흐리게) */
+.pj-project-card.is-done { background: #f6f7f8; opacity: .62; }
+.pj-project-card.is-done:hover { opacity: .85; }
+.pj-project-card.is-done .pj-project-dot { background: #9aa5b1; }
+/* 완료 숨기기 토글 */
+.pj-project-grid.pj-hide-done .pj-project-card.is-done { display: none; }
+/* 카드 수정 버튼 */
+.pj-card-edit {
+  position: absolute; top: 8px; right: 8px; width: 28px; height: 28px;
+  display: inline-flex; align-items: center; justify-content: center;
+  border-radius: 8px; color: #6b7280; opacity: 0; transition: opacity .12s;
+}
+.pj-card-edit .material-symbols-outlined { font-size: 18px; }
+.pj-project-card:hover .pj-card-edit { opacity: 1; }
+.pj-card-edit:hover { background: #eceef0; color: #1e1f21; }
 .pj-project-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--pj-color, #4573d2); margin-top: 5px; flex: 0 0 auto; }
 .pj-project-name { font-weight: 700; font-size: 15px; }
 .pj-project-desc { color: #6b7280; font-size: 12.5px; margin-top: 3px; }
diff --git a/app/static/project.js b/app/static/project.js
index 7911bd8..262741b 100644
--- a/app/static/project.js
+++ b/app/static/project.js
@@ -33,9 +33,9 @@
   }
 
   // ── 색상 팔레트 렌더 ───────────────────────────────────────
-  function renderColorPalette(container, onPick) {
+  function renderColorPalette(container, onPick, initial) {
     const colors = window.PJ_COLORS || ["#4573d2"];
-    let selected = colors[0];
+    let selected = (initial && colors.indexOf(initial) >= 0) ? initial : colors[0];
     container.innerHTML = "";
     colors.forEach(function (c) {
       const b = document.createElement("button");
@@ -60,27 +60,91 @@
   // 홈 페이지 — 새 프로젝트
   // ════════════════════════════════════════════════════════════
   function initHome() {
+    const grid = el("pj-project-grid");
+    if (!grid && !el("pj-toggle-done")) return;  // 홈 아님
+
+    // ── 완료 프로젝트 숨기기 토글 (localStorage 기억) ──
+    const toggleBtn = el("pj-toggle-done");
+    if (toggleBtn) {
+      const KEY = "pj_hide_done";
+      function apply(hide) {
+        if (grid) grid.classList.toggle("pj-hide-done", hide);
+        const n = toggleBtn.dataset.count;
+        toggleBtn.textContent = hide ? "완료 " + n + "개 보기" : "완료 " + n + "개 숨기기";
+      }
+      apply(localStorage.getItem(KEY) === "1");
+      toggleBtn.addEventListener("click", function () {
+        const hide = !(grid && grid.classList.contains("pj-hide-done"));
+        try { localStorage.setItem(KEY, hide ? "1" : "0"); } catch (_) {}
+        apply(hide);
+      });
+    }
+
+    // ── 새 프로젝트 모달 ──
     const newBtn = el("pj-new-project");
     const modal = el("pj-modal-project");
-    if (!newBtn || !modal) return;
-    wireModalClose(modal);
-    const getColor = renderColorPalette(el("pj-f-colors"));
+    if (newBtn && modal) {
+      wireModalClose(modal);
+      const getColor = renderColorPalette(el("pj-f-colors"));
+      newBtn.addEventListener("click", function () { openModal(modal); });
+      el("pj-save-project").addEventListener("click", async function () {
+        const name = el("pj-f-name").value.trim();
+        if (!name) { alert("이름을 입력하세요."); return; }
+        try {
+          await api("POST", "/project/api/projects", {
+            name: name,
+            description: el("pj-f-desc").value.trim(),
+            start_date: el("pj-f-start").value || null,
+            due_date: el("pj-f-due").value || null,
+            color: getColor(),
+          });
+          location.reload();
+        } catch (e) { alert("생성 실패: " + e.message); }
+      });
+    }
 
-    newBtn.addEventListener("click", function () { openModal(modal); });
-    el("pj-save-project").addEventListener("click", async function () {
-      const name = el("pj-f-name").value.trim();
-      if (!name) { alert("이름을 입력하세요."); return; }
-      try {
-        await api("POST", "/project/api/projects", {
-          name: name,
-          description: el("pj-f-desc").value.trim(),
-          start_date: el("pj-f-start").value || null,
-          due_date: el("pj-f-due").value || null,
-          color: getColor(),
+    // ── 프로젝트 수정 모달 ──
+    const editModal = el("pj-modal-edit");
+    if (editModal && grid) {
+      wireModalClose(editModal);
+      let getEditColor = null;
+      grid.querySelectorAll(".pj-card-edit").forEach(function (btn) {
+        btn.addEventListener("click", function (e) {
+          e.preventDefault(); e.stopPropagation();
+          const card = btn.closest(".pj-project-card");
+          el("pj-e-id").value = card.dataset.id;
+          el("pj-e-name").value = card.dataset.name || "";
+          el("pj-e-desc").value = card.dataset.desc || "";
+          el("pj-e-start").value = card.dataset.start || "";
+          el("pj-e-due").value = card.dataset.due || "";
+          el("pj-e-done").checked = card.dataset.status === "completed";
+          getEditColor = renderColorPalette(el("pj-e-colors"), null, card.dataset.color);
+          openModal(editModal);
         });
-        location.reload();
-      } catch (e) { alert("생성 실패: " + e.message); }
-    });
+      });
+      el("pj-save-edit").addEventListener("click", async function () {
+        const id = el("pj-e-id").value;
+        const name = el("pj-e-name").value.trim();
+        if (!name) { alert("이름을 입력하세요."); return; }
+        try {
+          await api("PUT", "/project/api/projects/" + id, {
+            name: name,
+            description: el("pj-e-desc").value.trim(),
+            start_date: el("pj-e-start").value || null,
+            due_date: el("pj-e-due").value || null,
+            color: getEditColor ? getEditColor() : undefined,
+            status: el("pj-e-done").checked ? "completed" : "active",
+          });
+          location.reload();
+        } catch (e) { alert("저장 실패: " + e.message); }
+      });
+      el("pj-delete-project").addEventListener("click", async function () {
+        const id = el("pj-e-id").value;
+        if (!confirm("이 프로젝트를 삭제할까요? 안의 업무도 모두 삭제됩니다.")) return;
+        try { await api("DELETE", "/project/api/projects/" + id); location.reload(); }
+        catch (e) { alert("삭제 실패: " + e.message); }
+      });
+    }
   }
 
   // ════════════════════════════════════════════════════════════