diff --git a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/persistence/contract/PlatformContract.java b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/persistence/contract/PlatformContract.java
index 7335495..7cf40f6 100644
--- a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/persistence/contract/PlatformContract.java
+++ b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/persistence/contract/PlatformContract.java
@@ -5,6 +5,7 @@ import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import java.time.LocalDate;
 import java.time.OffsetDateTime;
 
 @TableName("platform_contract")
@@ -25,6 +26,15 @@ public class PlatformContract {
 
     private String status;
 
+    @TableField("signing_date")
+    private LocalDate signingDate;
+
+    @TableField("effective_date")
+    private LocalDate effectiveDate;
+
+    @TableField("end_date")
+    private LocalDate endDate;
+
     @TableField("created_at")
     private OffsetDateTime createdAt;
 
@@ -79,6 +89,30 @@ public class PlatformContract {
         this.status = status;
     }
 
+    public LocalDate getSigningDate() {
+        return signingDate;
+    }
+
+    public void setSigningDate(LocalDate signingDate) {
+        this.signingDate = signingDate;
+    }
+
+    public LocalDate getEffectiveDate() {
+        return effectiveDate;
+    }
+
+    public void setEffectiveDate(LocalDate effectiveDate) {
+        this.effectiveDate = effectiveDate;
+    }
+
+    public LocalDate getEndDate() {
+        return endDate;
+    }
+
+    public void setEndDate(LocalDate endDate) {
+        this.endDate = endDate;
+    }
+
     public OffsetDateTime getCreatedAt() {
         return createdAt;
     }
diff --git a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/service/ContractService.java b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/service/ContractService.java
index a2dbab1..88c9f2b 100644
--- a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/service/ContractService.java
+++ b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/service/ContractService.java
@@ -27,6 +27,7 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
 import org.springframework.web.server.ResponseStatusException;
 
+import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import java.time.ZoneOffset;
 import java.util.LinkedHashMap;
@@ -68,6 +69,9 @@ public class ContractService {
         c.setProjectId(request.getProjectId());
         c.setTitle(blankToNull(request.getTitle()));
         c.setRemarks(blankToNull(request.getRemarks()));
+        if (request.getSigningDate() != null) c.setSigningDate(LocalDate.parse(request.getSigningDate()));
+        if (request.getEffectiveDate() != null) c.setEffectiveDate(LocalDate.parse(request.getEffectiveDate()));
+        if (request.getEndDate() != null) c.setEndDate(LocalDate.parse(request.getEndDate()));
         c.setStatus(ContractStatus.DRAFT.name());
         c.setCreatedAt(now);
         c.setUpdatedAt(now);
@@ -122,6 +126,9 @@ public class ContractService {
         if (request.getRemarks() != null) {
             c.setRemarks(blankToNull(request.getRemarks()));
         }
+        if (request.getSigningDate() != null) c.setSigningDate(LocalDate.parse(request.getSigningDate()));
+        if (request.getEffectiveDate() != null) c.setEffectiveDate(LocalDate.parse(request.getEffectiveDate()));
+        if (request.getEndDate() != null) c.setEndDate(LocalDate.parse(request.getEndDate()));
         c.setUpdatedAt(OffsetDateTime.now(ZoneOffset.UTC));
         contractMapper.updateById(c);
         auditService.record(
@@ -321,6 +328,9 @@ public class ContractService {
         m.put("projectId", c.getProjectId());
         m.put("title", c.getTitle());
         m.put("remarks", c.getRemarks());
+        m.put("signingDate", c.getSigningDate());
+        m.put("effectiveDate", c.getEffectiveDate());
+        m.put("endDate", c.getEndDate());
         m.put("status", c.getStatus());
         return m;
     }
@@ -354,6 +364,9 @@ public class ContractService {
         r.setTitle(c.getTitle());
         r.setRemarks(c.getRemarks());
         r.setStatus(c.getStatus());
+        r.setSigningDate(c.getSigningDate() != null ? c.getSigningDate().toString() : null);
+        r.setEffectiveDate(c.getEffectiveDate() != null ? c.getEffectiveDate().toString() : null);
+        r.setEndDate(c.getEndDate() != null ? c.getEndDate().toString() : null);
         r.setCreatedAt(c.getCreatedAt());
         r.setUpdatedAt(c.getUpdatedAt());
         return r;
diff --git a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractCreateRequest.java b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractCreateRequest.java
index 11e584a..2df7e85 100644
--- a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractCreateRequest.java
+++ b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractCreateRequest.java
@@ -15,6 +15,12 @@ public class ContractCreateRequest {
     @Size(max = 4000)
     private String remarks;
 
+    private String signingDate;
+
+    private String effectiveDate;
+
+    private String endDate;
+
     public Long getCustomerId() {
         return customerId;
     }
@@ -46,4 +52,28 @@ public class ContractCreateRequest {
     public void setRemarks(String remarks) {
         this.remarks = remarks;
     }
+
+    public String getSigningDate() {
+        return signingDate;
+    }
+
+    public void setSigningDate(String signingDate) {
+        this.signingDate = signingDate;
+    }
+
+    public String getEffectiveDate() {
+        return effectiveDate;
+    }
+
+    public void setEffectiveDate(String effectiveDate) {
+        this.effectiveDate = effectiveDate;
+    }
+
+    public String getEndDate() {
+        return endDate;
+    }
+
+    public void setEndDate(String endDate) {
+        this.endDate = endDate;
+    }
 }
diff --git a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractResponse.java b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractResponse.java
index e07cccd..59b5c28 100644
--- a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractResponse.java
+++ b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractResponse.java
@@ -13,6 +13,9 @@ public class ContractResponse {
     private String title;
     private String remarks;
     private String status;
+    private String signingDate;
+    private String effectiveDate;
+    private String endDate;
     private OffsetDateTime createdAt;
     private OffsetDateTime updatedAt;
     /** 仅详情接口填充；列表分页省略该字段。 */
@@ -67,6 +70,30 @@ public class ContractResponse {
         this.status = status;
     }
 
+    public String getSigningDate() {
+        return signingDate;
+    }
+
+    public void setSigningDate(String signingDate) {
+        this.signingDate = signingDate;
+    }
+
+    public String getEffectiveDate() {
+        return effectiveDate;
+    }
+
+    public void setEffectiveDate(String effectiveDate) {
+        this.effectiveDate = effectiveDate;
+    }
+
+    public String getEndDate() {
+        return endDate;
+    }
+
+    public void setEndDate(String endDate) {
+        this.endDate = endDate;
+    }
+
     public OffsetDateTime getCreatedAt() {
         return createdAt;
     }
diff --git a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractUpdateRequest.java b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractUpdateRequest.java
index aa347b9..0f0e544 100644
--- a/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractUpdateRequest.java
+++ b/services/delivery-platform-api/src/main/java/cn/craftlabs/platform/api/web/dto/ContractUpdateRequest.java
@@ -10,6 +10,12 @@ public class ContractUpdateRequest {
     @Size(max = 4000)
     private String remarks;
 
+    private String signingDate;
+
+    private String effectiveDate;
+
+    private String endDate;
+
     public String getTitle() {
         return title;
     }
@@ -25,4 +31,28 @@ public class ContractUpdateRequest {
     public void setRemarks(String remarks) {
         this.remarks = remarks;
     }
+
+    public String getSigningDate() {
+        return signingDate;
+    }
+
+    public void setSigningDate(String signingDate) {
+        this.signingDate = signingDate;
+    }
+
+    public String getEffectiveDate() {
+        return effectiveDate;
+    }
+
+    public void setEffectiveDate(String effectiveDate) {
+        this.effectiveDate = effectiveDate;
+    }
+
+    public String getEndDate() {
+        return endDate;
+    }
+
+    public void setEndDate(String endDate) {
+        this.endDate = endDate;
+    }
 }
diff --git a/services/delivery-platform-api/src/main/resources/db/migration/V18__contract_date_fields.sql b/services/delivery-platform-api/src/main/resources/db/migration/V18__contract_date_fields.sql
new file mode 100644
index 0000000..f56428b
--- /dev/null
+++ b/services/delivery-platform-api/src/main/resources/db/migration/V18__contract_date_fields.sql
@@ -0,0 +1,4 @@
+ALTER TABLE platform_contract
+  ADD COLUMN signing_date DATE,
+  ADD COLUMN effective_date DATE,
+  ADD COLUMN end_date DATE;
diff --git a/web/delivery-platform-ui/src/views/ContractDetailView.vue b/web/delivery-platform-ui/src/views/ContractDetailView.vue
index 1510c98..06ff4d4 100644
--- a/web/delivery-platform-ui/src/views/ContractDetailView.vue
+++ b/web/delivery-platform-ui/src/views/ContractDetailView.vue
@@ -10,7 +10,7 @@
           </el-tag>
         </div>
         <div v-if="contract && isDraft" class="head-actions">
-          <el-button type="primary" :loading="saving" @click="saveHeader">保存</el-button>
+          <el-button v-permission="'contract:rw'" type="primary" :loading="saving" @click="saveHeader">保存</el-button>
         </div>
       </div>
     </template>
@@ -39,6 +39,7 @@
       <div v-if="transitionButtons.length" class="transition-bar">
         <span class="label">状态操作：</span>
         <el-button
+          v-permission="'contract:rw'"
           v-for="btn in transitionButtons"
           :key="btn.status"
           :type="btn.danger ? 'danger' : 'primary'"
@@ -51,7 +52,7 @@
 
       <h3 class="section-title">合同明细</h3>
       <div v-if="isDraft" class="line-toolbar">
-        <el-button type="primary" @click="openLineDialog()">添加明细</el-button>
+        <el-button v-permission="'contract:rw'" type="primary" @click="openLineDialog()">添加明细</el-button>
       </div>
       <el-table :data="lineRows" border stripe style="width: 100%">
         <el-table-column prop="itemName" label="标的/行项" min-width="200" show-overflow-tooltip />
@@ -60,8 +61,8 @@
         <el-table-column prop="amount" label="金额" width="120" />
         <el-table-column v-if="isDraft" label="操作" width="140" fixed="right">
           <template #default="{ row }">
-            <el-button type="primary" link @click="openLineDialog(row)">编辑</el-button>
-            <el-button type="danger" link @click="onDeleteLine(row)">删除</el-button>
+            <el-button v-permission="'contract:rw'" type="primary" link @click="openLineDialog(row)">编辑</el-button>
+            <el-button v-permission="'contract:rw'" type="danger" link @click="onDeleteLine(row)">删除</el-button>
           </template>
         </el-table-column>
       </el-table>
@@ -75,7 +76,7 @@
           :on-change="handleFileChange"
           :accept="'.pdf,.doc,.docx,.xls,.xlsx,.zip'"
         >
-          <el-button type="primary" v-if="isDraft || isEffective">上传附件</el-button>
+          <el-button v-permission="'contract:rw'" type="primary" v-if="isDraft || isEffective">上传附件</el-button>
         </el-upload>
         <el-table :data="attachments" stripe size="small" style="margin-top:8px">
           <el-table-column prop="fileName" label="文件名" min-width="200" />
diff --git a/web/delivery-platform-ui/src/views/ContractWizardView.vue b/web/delivery-platform-ui/src/views/ContractWizardView.vue
index 6767fb3..096c8df 100644
--- a/web/delivery-platform-ui/src/views/ContractWizardView.vue
+++ b/web/delivery-platform-ui/src/views/ContractWizardView.vue
@@ -108,7 +108,7 @@
     <div class="footer-actions">
       <el-button v-if="step > 0" @click="step -= 1">上一步</el-button>
       <el-button v-if="step < 2" type="primary" @click="nextStep">下一步</el-button>
-      <el-button v-if="step === 2" type="primary" :loading="submitting" @click="submit">提交创建（草稿）</el-button>
+      <el-button v-permission="'contract:rw'" v-if="step === 2" type="primary" :loading="submitting" @click="submit">提交创建（草稿）</el-button>
     </div>
   </el-card>
 </template>