diff --git a/src/controller/coop.controller.js b/src/controller/coop.controller.js
index 744c15e..7c825dc 100644
--- a/src/controller/coop.controller.js
+++ b/src/controller/coop.controller.js
@@ -4,6 +4,7 @@ const {
   updateCoop,
   getCoopById,
   deleteCoop,
+  getEmptyCoopList,
 } = require("../service/coop.service");
 const Response = require("../utils/response");
 
@@ -14,6 +15,12 @@ class CoopController {
     ctx.body = Response(0, "查询鸡舍列表成功", res);
   }
 
+  async emptyCoop(ctx, next) {
+    const { house_id } = ctx.request.query;
+    const res = await getEmptyCoopList(house_id);
+    ctx.body = Response(0, "查询空闲鸡舍列表成功", res);
+  }
+
   async create(ctx, next) {
     const { coop_name, coop_cage_number, chicken_number, house_id } =
       ctx.request.body;
diff --git a/src/router/coop.route.js b/src/router/coop.route.js
index 47efab9..c580be1 100644
--- a/src/router/coop.route.js
+++ b/src/router/coop.route.js
@@ -10,6 +10,7 @@ const {
   update,
   info,
   deleteById,
+  emptyCoop,
 } = require("../controller/coop.controller");
 
 router.get("/list", auth, list);
@@ -22,4 +23,6 @@ router.get("/info", auth, info);
 
 router.post("/delete", auth, deleteById);
 
+router.get("/empty", auth, emptyCoop);
+
 module.exports = router;
diff --git a/src/service/chicken.service.js b/src/service/chicken.service.js
index ff5a18b..3136ab4 100644
--- a/src/service/chicken.service.js
+++ b/src/service/chicken.service.js
@@ -5,7 +5,7 @@ const { getFactoryById } = require("./factory.service");
 const { getVarietyById } = require("./variety.service");
 const { getBatchCoopByIds } = require("./coop.service");
 const { getAccountInfo } = require("./account.service");
-const { Op } = require("sequelize");
+const { Op, Sequelize } = require("sequelize");
 const { DATE_FILTER } = require("../constant/constant");
 class ChickenService {
   async addChicken(
@@ -92,6 +92,7 @@ class ChickenService {
       Object.assign(selectObj, { put_time: DATE_FILTER[put_time] });
     const res = await Chicken.findAll({
       where: selectObj,
+      order: [["put_time", "DESC"]],
     });
     // 根据coop_ids进行筛选一次
     const arr = res.filter((item) => {
diff --git a/src/service/coop.service.js b/src/service/coop.service.js
index 7518c4c..59910fd 100644
--- a/src/service/coop.service.js
+++ b/src/service/coop.service.js
@@ -1,6 +1,7 @@
 const { Op } = require("sequelize");
 const Chicken = require("../model/chicken.model.js");
 const Coop = require("../model/coop.model");
+const { findDiffArr } = require("../utils/common");
 const { getHouseById } = require("./house.service");
 class CoopService {
   async getCoopListById(house_id) {
@@ -95,6 +96,39 @@ class CoopService {
     });
     return res;
   }
+
+  // 查询空闲鸡舍
+  // 没有进鸡记录的
+  async getEmptyCoopList(house_id) {
+    const res = await Coop.findAll({
+      where: {
+        house_id,
+      },
+    });
+    const arr = res.map((item) => item.dataValues);
+    const coopidArr = res?.map((item) => item.dataValues.id);
+    // 筛选arr
+    const chickenList = await Chicken.findAll({
+      where: {
+        house_id,
+      },
+    });
+    const chickArr = chickenList.map((item) => item.dataValues.coop_id);
+    // 找到两个数组的非交集
+    const flat = chickArr
+      .map((item) => item.split(","))
+      .flat()
+      .map((item) => parseInt(item));
+    const resIds = findDiffArr(coopidArr, flat);
+    let realRes = [];
+    arr.map((item) => {
+      if (resIds.includes(item.id)) {
+        realRes.push(item);
+      }
+    });
+    // realRes 即为空闲 鸡舍
+    return realRes;
+  }
 }
 
 module.exports = new CoopService();
diff --git a/src/utils/common.js b/src/utils/common.js
index 87ca9d8..ae5904c 100644
--- a/src/utils/common.js
+++ b/src/utils/common.js
@@ -38,9 +38,18 @@ function getDayLife(out_time, in_time) {
   return joinTime;
 }
 
+const findDiffArr = (arr1, arr2) => {
+  const arr = [...arr1, ...arr2];
+  const newArr = arr.filter((t) => {
+    return !(arr1.includes(t) && arr2.includes(t));
+  });
+  return newArr;
+};
+
 module.exports = {
   isJsonString,
   generateSerialNumber,
   haveSame,
   getDayLife,
+  findDiffArr,
 };