diff --git a/src/components/ProjectSettingsModal.tsx b/src/components/ProjectSettingsModal.tsx
index e1b0377..eae4004 100644
--- a/src/components/ProjectSettingsModal.tsx
+++ b/src/components/ProjectSettingsModal.tsx
@@ -7,7 +7,7 @@ import { store, useStore } from '../store'
 import type { SettingDesc } from '../contracts'
 import { SettingsShell, Btn, EmptyState } from '@ui'
 import { SettingInput, flatten, unflatten, groupNames } from './SettingsModal'
-import { RdmMembersSection, RdmDutiesSection } from './adminRdmSections'
+import { RdmMembersSection, RdmDutiesSection, RdmPermMatrixSection } from './adminRdmSections'
 
 export function ProjectSettingsModal() {
   const projectId = useStore(s => s.ui.projectSettingsId)
@@ -15,6 +15,7 @@ export function ProjectSettingsModal() {
   const project = projects.find(p => p.id === projectId)
   const rdmMembersAvailable = useStore(s => s.rdmMembersAvailable)
   const rdmDocReviewAvailable = useStore(s => s.rdmDocReviewAvailable)
+  const rdmPermMatrixAvailable = useStore(s => s.rdmPermMatrixAvailable)
   const [tab, setTab] = useState('project')
   const [schema, setSchema] = useState<SettingDesc[]>([])
   const [draft, setDraft] = useState<Record<string, any>>({})
@@ -61,15 +62,17 @@ export function ProjectSettingsModal() {
         // U6/KTD5：成员与文档职责页签按 RDM 命令面门控（普通基座不出现）。
         ...(rdmMembersAvailable ? [{ key: 'members', label: '成员', icon: 'users' as const }] : []),
         ...(rdmDocReviewAvailable ? [{ key: 'duties', label: '文档职责 · 整文审签', icon: 'shield' as const }] : []),
+        ...(rdmPermMatrixAvailable ? [{ key: 'matrix', label: '项目权限', icon: 'key' as const }] : []),
       ]}
       footer={saved ? <span style={{ color: 'var(--ok)' }}>✓ 已保存</span> : '项目设置覆盖用户设置（new-run 类对新任务生效）'}
     >
       <div>
         {tab === 'members' && <RdmMembersSection projectId={projectId} />}
         {tab === 'duties' && <RdmDutiesSection projectId={projectId} />}
-        {tab !== 'members' && tab !== 'duties' && !loaded ? (
+        {tab === 'matrix' && <RdmPermMatrixSection projectId={projectId} />}
+        {tab !== 'members' && tab !== 'duties' && tab !== 'matrix' && !loaded ? (
           <EmptyState icon="settings">加载中…</EmptyState>
-        ) : tab !== 'members' && tab !== 'duties' ? (
+        ) : tab !== 'members' && tab !== 'duties' && tab !== 'matrix' ? (
           <>
             <div className="empty-note" style={{ marginBottom: 10 }}>
               此处仅保存本项目的覆盖值；留空即沿用用户/系统设置。跨会话读取在「会话协作」组。
diff --git a/src/components/adminRdmSections.tsx b/src/components/adminRdmSections.tsx
index 9d7d443..5c823fb 100644
--- a/src/components/adminRdmSections.tsx
+++ b/src/components/adminRdmSections.tsx
@@ -12,7 +12,7 @@ import {
   roleCreatePayload, roleActionPayload, roleAssignPayload, roleDisablePayload,
   memberAddPayload, memberRemovePayload,
   assignDocDutiesPayload, docSubmitPayload, docApprovePayload, docRejectPayload,
-  docFinalPayload, docStatusPayload,
+  docFinalPayload, docStatusPayload, permCheckPayload, describeSource,
 } from '../rdmManagement'
 
 // ---- 系统管理：RDM 角色权限（仅管理员 + rdmRolesAvailable） ----
@@ -307,3 +307,79 @@ export function RdmDutiesSection({ projectId }: { projectId: string }) {
     </div>
   )
 }
+
+
+// ---- 项目设置：项目权限（矩阵解释读面，与实际判定同源——UI 不重算） ----
+
+interface MatrixAction { action: string; allowed: boolean; source: string; reason?: string }
+interface MatrixOut {
+  projectId: string; member: string; role: string
+  profRole: { roleId: string; name: string } | null
+  actions: MatrixAction[]
+}
+
+export function RdmPermMatrixSection({ projectId }: { projectId: string }) {
+  const me = useStore(s => s.me)
+  const [member, setMember] = useState('')
+  const [members, setMembers] = useState<MemberRow[] | null>(null)
+  const [matrix, setMatrix] = useState<MatrixOut | null>(null)
+  const [err, setErr] = useState('')
+  const [busy, setBusy] = useState(false)
+
+  useEffect(() => {
+    api.rdmCommand<{ members: MemberRow[] }>('rdm.project.member.list', { projectId })
+      .then(out => {
+        setMembers(out.members ?? [])
+        // 默认自省：普通成员只看自己的矩阵；负责人/管理员可切换他人。
+        if (me?.owner) setMember(prev => prev || me.owner)
+      })
+      .catch(e => setErr(String(e)))
+  }, [projectId, me?.owner])
+
+  const query = async (m: string) => {
+    if (!m) return
+    setErr(''); setBusy(true); setMatrix(null)
+    try {
+      setMatrix(await api.rdmCommand<MatrixOut>('rdm.perm.check', permCheckPayload(projectId, m)))
+    } catch (e) { setErr(String(e)) } finally { setBusy(false) }
+  }
+
+  return (
+    <div>
+      <div className="ad-create">
+        <div className="ad-row">
+          <select className="lg-input" value={member} onChange={e => { setMember(e.target.value); query(e.target.value) }}>
+            <option value="">选择成员（默认自省）…</option>
+            {(members ?? []).map(m => <option key={m.owner} value={m.owner}>{m.owner}</option>)}
+          </select>
+          <Btn variant="ghost" icon="eye" disabled={busy || !member} onClick={() => query(member)}>查看矩阵</Btn>
+        </div>
+        <p className="ad-hint">普通成员可查看自己的有效权限；查看他人矩阵须项目管理权。矩阵与实际判定同源（服务端解释，非前端推算）。</p>
+      </div>
+      {matrix && (
+        <>
+          <div className="ad-row">
+            <span>成员 <b className="ad-mono">{matrix.member}</b> · 项目关系 <b>{matrix.role}</b>
+              {matrix.profRole && <> · 专业角色 <b>{matrix.profRole.name}</b>（{matrix.profRole.roleId}）</>}
+            </span>
+          </div>
+          <table className="ad-table">
+            <thead><tr><th>动作</th><th>生效</th><th>来源</th><th>原因（拒绝时）</th></tr></thead>
+            <tbody>
+              {(matrix.actions ?? []).map(a => (
+                <tr key={a.action}>
+                  <td className="ad-mono">{a.action}</td>
+                  <td>{a.allowed ? <span className="ad-chip ad-chip-admin">允许</span> : <span className="ad-chip ad-chip-warn">拒绝</span>}</td>
+                  <td className="ad-dim">{describeSource(a.source)}</td>
+                  <td className="ad-dim">{a.reason || '—'}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </>
+      )}
+      {!matrix && !err && members !== null && <p className="ad-hint">选择成员后展示 12 项动作的有效权限与第一拒绝原因。</p>}
+      {err && <div className="lg-err"><Icon name="alert" size={14} />{err}</div>}
+    </div>
+  )
+}
diff --git a/src/rdmManagement.ts b/src/rdmManagement.ts
index 9a9eb3d..5635cce 100644
--- a/src/rdmManagement.ts
+++ b/src/rdmManagement.ts
@@ -19,6 +19,12 @@ export const RDM_MEMBER_COMMANDS = [
   'rdm.project.member.remove',
 ] as const
 
+/** 项目设置「项目权限」页消费的命令面（矩阵解释 + 成员清单）。 */
+export const RDM_PERM_MATRIX_COMMANDS = [
+  'rdm.perm.check',
+  'rdm.project.member.list',
+] as const
+
 /** 项目设置「文档职责 · 整文审签」页消费的命令面。 */
 export const RDM_DOC_REVIEW_COMMANDS = [
   'rdm.review.assign.doc',
@@ -48,6 +54,10 @@ export const rdmMembersReady = (cmds: CommandListItem[] | null | undefined) =>
 export const rdmDocReviewReady = (cmds: CommandListItem[] | null | undefined) =>
   ready(cmds, RDM_DOC_REVIEW_COMMANDS)
 
+/** 项目权限矩阵页是否就绪。 */
+export const rdmPermMatrixReady = (cmds: CommandListItem[] | null | undefined) =>
+  ready(cmds, RDM_PERM_MATRIX_COMMANDS)
+
 /** RDM 动作清单（12 项，与 RDM perms.AllActions 对齐；角色动作编辑器选项）。 */
 export const ROLE_ACTIONS = [
   'project.create', 'project.archive', 'member.manage', 'duty.assign',
@@ -81,6 +91,20 @@ export const docFinalPayload = (projectId: string, docId: string, round = 0) =>
   round > 0 ? { projectId, docId, round } : { projectId, docId }
 export const docStatusPayload = (projectId: string, docId: string) => ({ projectId, docId })
 
+export const permCheckPayload = (projectId: string, member: string) => ({ projectId, member })
+
+/** 矩阵来源标签（人话映射；未知来源回退原文——服务端新增来源时不至于空白）。 */
+export function describeSource(source: string): string {
+  switch (source) {
+    case 'admin': return '系统管理员'
+    case 'prof-role-default': return '专业角色默认'
+    case 'override': return '项目内覆盖'
+    case 'relation-default': return '项目关系默认'
+    case 'non-member': return '非项目成员'
+    default: return source
+  }
+}
+
 /** 审阅人 CSV 解析：去空白、去空项、保序去重（表单输入 → reviewers 数组）。 */
 export function parseReviewers(csv: string): string[] {
   const seen = new Set<string>()
diff --git a/src/store.ts b/src/store.ts
index 53a07ee..c99f0d9 100644
--- a/src/store.ts
+++ b/src/store.ts
@@ -9,7 +9,7 @@ import { canFlushOutbox, deriveShellPhase } from './runstate'
 import { flashElement } from './scrollsync'
 import { isThemeChoice, resolveTheme, type ThemeChoice } from './theme'
 import { rdmAuditReady } from './workspaces'
-import { rdmRolesReady, rdmMembersReady, rdmDocReviewReady } from './rdmManagement'
+import { rdmRolesReady, rdmMembersReady, rdmDocReviewReady, rdmPermMatrixReady } from './rdmManagement'
 
 type FontSizeChoice = 13 | 14 | 16 | 18
 const FONT_SIZE_CHOICES: readonly FontSizeChoice[] = [13, 14, 16, 18]
@@ -120,6 +120,7 @@ interface AppState {
   rdmRolesAvailable: boolean
   rdmMembersAvailable: boolean
   rdmDocReviewAvailable: boolean
+  rdmPermMatrixAvailable: boolean
   /** 管理区声明分区（WP3-I3）：编译插件声明，入口全员可见、区内置权限不合并。 */
   adminSections: AdminZoneSection[]
   ui: UIState
@@ -186,7 +187,7 @@ let state: AppState = {
   plan: null, todos: null, artifacts: [], surfaces: [], projectSurfaces: [], cards: [], projectCards: [], inboxScope: 'conv', runtimeMock: false, profiles: [], pluginPanels: [],
   serverWorkspaces: [],
   rdmAuditAvailable: false,
-  rdmRolesAvailable: false, rdmMembersAvailable: false, rdmDocReviewAvailable: false,
+  rdmRolesAvailable: false, rdmMembersAvailable: false, rdmDocReviewAvailable: false, rdmPermMatrixAvailable: false,
   adminSections: [],
   ui: loadUI(), connected: false, posting: false, error: null, toast: null,
   outbox: [], outboxDraining: false,
@@ -805,6 +806,7 @@ export const store = {
         rdmRolesAvailable: rdmRolesReady(cmds),
         rdmMembersAvailable: rdmMembersReady(cmds),
         rdmDocReviewAvailable: rdmDocReviewReady(cmds),
+        rdmPermMatrixAvailable: rdmPermMatrixReady(cmds),
       })
     } catch { set({ rdmAuditAvailable: false }) }
     try {