diff --git a/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/CreditContractService.java b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/CreditContractService.java
new file mode 100644
index 0000000..930993e
--- /dev/null
+++ b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/CreditContractService.java
@@ -0,0 +1,28 @@
+package com.czcb.scfs.api.service.v2.ar;
+
+import com.czcb.scfs.api.core.ApiClient;
+import com.czcb.scfs.api.core.http.HttpHeaders;
+import com.czcb.scfs.api.core.http.HttpResponse;
+import com.czcb.scfs.api.service.v2.ar.model.CreditContractLimitQueryRequest;
+import com.czcb.scfs.api.service.v2.ar.model.CreditContractLimitQueryResponse;
+
+public class CreditContractService {
+
+    private final ApiClient apiClient;
+
+    public CreditContractService(ApiClient apiClient) {
+        this.apiClient = apiClient;
+    }
+
+    /**
+     * 312105-合同详情查看(农都)
+     */
+    public CreditContractLimitQueryResponse creditContractLimitQuery(CreditContractLimitQueryRequest request) {
+        String url = "/credit/contract/limit-used/query";
+        HttpResponse<CreditContractLimitQueryResponse> httpResponse = apiClient.post(url, HttpHeaders.apiVersionV2(),
+                request.toJsonRequest(), CreditContractLimitQueryResponse.class);
+        return httpResponse.getServiceResponse();
+    }
+
+
+}
diff --git a/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/model/CreditContractLimitQueryRequest.java b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/model/CreditContractLimitQueryRequest.java
new file mode 100644
index 0000000..97e87f9
--- /dev/null
+++ b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/model/CreditContractLimitQueryRequest.java
@@ -0,0 +1,59 @@
+package com.czcb.scfs.api.service.v2.ar.model;
+
+import com.czcb.scfs.api.core.ApiRequest;
+import com.czcb.scfs.api.core.agrs.TransType;
+import com.google.gson.annotations.SerializedName;
+import lombok.Data;
+import lombok.experimental.Accessors;
+
+
+/**
+ * 242909-合同已用额度查询
+ *
+ * @author yuchuan
+ * @since 2025/12/29
+ */
+@Data
+@Accessors(chain = true)
+@TransType("242909")
+public class CreditContractLimitQueryRequest implements ApiRequest {
+    /**
+     * 渠道编号
+     */
+    @SerializedName("channel_no")
+    private String channelNo;
+
+    /**
+     * 应用编号
+     */
+    @SerializedName("app_no")
+    private String appNo;
+
+    /**
+     * 流水号
+     */
+    @SerializedName("serial_no")
+    private String serialNo;
+
+    /**
+     * 操作日期
+     */
+    @SerializedName("trans_date")
+    private String transDate;
+
+    /**
+     * 操作时间
+     */
+    @SerializedName("trans_tradetime")
+    private String transTradeTime;
+
+
+    @SerializedName("apply_account_no")
+    private String applyAccountNo;//贷款申请账号
+
+    @SerializedName("apply_account_name")
+    private String applyAccountName;//贷款申请户名
+
+    @SerializedName("contract_no")
+    private String contractNo;//贷款合同编号
+}
diff --git a/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/model/CreditContractLimitQueryResponse.java b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/model/CreditContractLimitQueryResponse.java
new file mode 100644
index 0000000..99bbf9b
--- /dev/null
+++ b/scfs-api-service/src/main/java/com/czcb/scfs/api/service/v2/ar/model/CreditContractLimitQueryResponse.java
@@ -0,0 +1,73 @@
+package com.czcb.scfs.api.service.v2.ar.model;
+
+import com.czcb.scfs.api.core.ApiResponse;
+import com.google.gson.annotations.SerializedName;
+import lombok.Data;
+import lombok.experimental.Accessors;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * 242909-合同已用额度查询
+ *
+ * @author yuchuan
+ * @since 2025/12/29
+ */
+@Data
+@Accessors(chain = true)
+public class CreditContractLimitQueryResponse implements ApiResponse {
+    /**
+     * 000000：表示成功
+     */
+    @SerializedName("recode")
+    private String recode;
+
+    /**
+     * 结果信息
+     */
+    @SerializedName("recode_info")
+    private String recodeInfo;
+
+    /**
+     * 系统流水号
+     */
+    @SerializedName("sys_serial_no")
+    private String sysSerialNo;
+
+    /**
+     * 系统日期（YYYY-MM-DD）
+     */
+    @SerializedName("sys_date")
+    private String sysDate;
+
+    /**
+     * 系统时间（YYYY-MM-DD hh:mm:ss）
+     */
+    @SerializedName("sys_time")
+    private String sysTime;
+
+
+    @SerializedName("data")
+    private List<CreditContractLimit> creditContractLimitList;
+
+    @Data
+    @Accessors(chain = true)
+    public static class CreditContractLimit implements Serializable {
+
+        @SerializedName("contract_no")
+        private String contractNo;//贷款合同编号
+
+        @SerializedName("business_limit")
+        private BigDecimal businessLimit;//授信额度
+
+        @SerializedName("used_limit")
+        private BigDecimal usedLimit;//已用额度
+
+        @SerializedName("credit_limit_end")
+        private Date creditLimitEnd;//额度期限止
+
+    }
+}
diff --git a/scfs-api-spring-boot-starter/src/main/java/com/czcb/scfs/spring/boot/starter/ScfsAutoConfiguration.java b/scfs-api-spring-boot-starter/src/main/java/com/czcb/scfs/spring/boot/starter/ScfsAutoConfiguration.java
index 3bb7217..b0e7712 100644
--- a/scfs-api-spring-boot-starter/src/main/java/com/czcb/scfs/spring/boot/starter/ScfsAutoConfiguration.java
+++ b/scfs-api-spring-boot-starter/src/main/java/com/czcb/scfs/spring/boot/starter/ScfsAutoConfiguration.java
@@ -5,10 +5,7 @@ import com.czcb.scfs.api.core.Profile;
 import com.czcb.scfs.api.core.http.ApiClientBuilder;
 import com.czcb.scfs.api.service.echo.EchoService;
 import com.czcb.scfs.api.service.v2.account.AccountService;
-import com.czcb.scfs.api.service.v2.ar.ArcOrderDeliveryService;
-import com.czcb.scfs.api.service.v2.ar.ContractInfoService;
-import com.czcb.scfs.api.service.v2.ar.OrderPurchaseService;
-import com.czcb.scfs.api.service.v2.ar.ProjectInfoService;
+import com.czcb.scfs.api.service.v2.ar.*;
 import com.czcb.scfs.api.service.v2.bills.BillService;
 import com.czcb.scfs.api.service.v2.bmd.BmdService;
 import com.czcb.scfs.api.service.v2.cat.order.OrderService;
@@ -335,4 +332,12 @@ public class ScfsAutoConfiguration {
         return new OrderPurchaseService(apiClient);
     }
 
+    @Bean
+    @ConditionalOnMissingBean
+    @ConditionalOnClass(CreditContractService.class)
+    public CreditContractService creditContractService(ApiClient apiClient) {
+        return new CreditContractService(apiClient);
+    }
+
+
 }
diff --git a/scfs-api-test/src/test/java/com/czcb/scfs/api/test/service/ArServiceTest.java b/scfs-api-test/src/test/java/com/czcb/scfs/api/test/service/ArServiceTest.java
index d62c3e2..e03d445 100644
--- a/scfs-api-test/src/test/java/com/czcb/scfs/api/test/service/ArServiceTest.java
+++ b/scfs-api-test/src/test/java/com/czcb/scfs/api/test/service/ArServiceTest.java
@@ -2,6 +2,7 @@ package com.czcb.scfs.api.test.service;
 
 
 import com.czcb.scfs.api.service.v2.ar.ContractInfoService;
+import com.czcb.scfs.api.service.v2.ar.CreditContractService;
 import com.czcb.scfs.api.service.v2.ar.OrderPurchaseService;
 import com.czcb.scfs.api.service.v2.ar.ProjectInfoService;
 import com.czcb.scfs.api.service.v2.ar.model.*;
@@ -22,6 +23,8 @@ public class ArServiceTest {
     private ProjectInfoService projectInfoService;
     @Resource
     private OrderPurchaseService orderPurchaseService;
+    @Resource
+    private CreditContractService creditContractService;
 
 
     //303305-项目详情查看(农都)
@@ -72,7 +75,7 @@ public class ArServiceTest {
         System.out.println(response);
     }
 
-    //312105-合同详情查看(农都)
+    //312106-合同分页查询(农都)
     @Test
     void arContractInfoPageQuery() {
         ArContractInfoPageQueryRequest request = new ArContractInfoPageQueryRequest();
@@ -225,4 +228,21 @@ public class ArServiceTest {
         ArOrderPurchaseInvalidResponse response = orderPurchaseService.arOrderPurchaseInvalid(request);
         System.out.println(response);
     }
+
+    //312105-合同详情查看(农都)
+    @Test
+    void creditContractLimitQuery() {
+        CreditContractLimitQueryRequest request = new CreditContractLimitQueryRequest();
+        request.setChannelNo("0000");
+        request.setAppNo("10");
+        request.setSerialNo(UUID.randomUUID().toString().replace("-", ""));
+        request.setTransDate("2024-03-20");
+        request.setTransTradeTime("2024-01-02 09:11:53");
+
+        request.setApplyAccountNo("1038250924000010");
+        request.setApplyAccountName("晋城王台科工贸有限公司");
+
+        CreditContractLimitQueryResponse response = creditContractService.creditContractLimitQuery(request);
+        System.out.println(response);
+    }
 }