diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/TimeBucket.java b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/TimeBucket.java
new file mode 100644
index 0000000..ce38de0
--- /dev/null
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/TimeBucket.java
@@ -0,0 +1,96 @@
+package org.dromara.common.core.utils;
+
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * @Description TODO
+ * @Auther caojiawei
+ * @Date 2019/7/5 10:44
+ * @Version 1.0
+ **/
+public class TimeBucket {
+    private static final ThreadLocal<DateFormat> FORMATS = ThreadLocal.withInitial(() -> new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
+
+    private final Date start;
+
+    private final Date end;
+
+    public TimeBucket(Date start, Date end) {
+        if (start.after(end)) {
+            throw new IllegalArgumentException("时间段无效(开始日期需要小于结束日期)");
+        }
+        this.start = start;
+        this.end = end;
+    }
+
+    public TimeBucket(String start, String end) throws ParseException {
+        this(parse(start), parse(end));
+    }
+
+    public TimeBucket(long startTime, long endTime) {
+        this(new Date(startTime), new Date(endTime));
+    }
+
+    /**
+     * TimeBucket会返回重叠的时间段
+     * 若返回null说明没有重叠的时间段
+     *
+     * @param buckets 时间段
+     * @return
+     */
+    public static TimeBucket union(TimeBucket... buckets) {
+        //长度为1无需判断
+        if (buckets == null || buckets.length <= 1) {
+            return null;
+        }
+        for (int i = 0; i < buckets.length - 1; i++) {
+            long start = buckets[i].getStartTime();
+            long end = buckets[i].getEndTime();
+            for (int j = i + 1; j < buckets.length; j++) {
+                if (buckets[j].getStartTime() > start) {
+                    start = buckets[j].getStartTime();
+                }
+                if (buckets[j].getEndTime() < end) {
+                    end = buckets[j].getEndTime();
+                }
+                if (start < end) {
+                    return new TimeBucket(start, end);
+                }
+            }
+        }
+        return null;
+    }
+
+    public Date getStart() {
+        return start;
+    }
+
+    public Date getEnd() {
+        return end;
+    }
+
+    public long getStartTime() {
+        return start.getTime();
+    }
+
+    public long getEndTime() {
+        return end.getTime();
+    }
+
+    private static Date parse(String str) throws ParseException {
+        return FORMATS.get().parse(str);
+    }
+
+    private static String format(Date str) {
+        return FORMATS.get().format(str);
+    }
+
+    @Override
+    public String toString() {
+        return "TimeBucket{start=" + format(start) + ";end=" + format(end) + "}";
+    }
+
+}
diff --git a/ruoyi-modules/rouyi-scale/src/main/java/org/dromara/scale/service/impl/ReservationServiceImpl.java b/ruoyi-modules/rouyi-scale/src/main/java/org/dromara/scale/service/impl/ReservationServiceImpl.java
index 58bb56b..7178033 100644
--- a/ruoyi-modules/rouyi-scale/src/main/java/org/dromara/scale/service/impl/ReservationServiceImpl.java
+++ b/ruoyi-modules/rouyi-scale/src/main/java/org/dromara/scale/service/impl/ReservationServiceImpl.java
@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import lombok.RequiredArgsConstructor;
 import org.dromara.common.core.exception.ServiceException;
 import org.dromara.common.core.utils.MapstructUtils;
+import org.dromara.common.core.utils.TimeBucket;
 import org.dromara.common.satoken.utils.LoginHelper;
 import org.dromara.scale.domain.ReservationDay;
 import org.dromara.scale.domain.ReservationTime;
@@ -47,9 +48,20 @@ public class ReservationServiceImpl implements IReservationService {
         Long id = add.getId();
         if (flag) {
             List<ReservationTime> timeList = bo.getTimeList();
-            for (ReservationTime one : timeList) {
+            int size = timeList.size();
+            if (size == 0) {
+                throw new ServiceException("请选择可预约时间");
+            }
+            TimeBucket[] buckets = new TimeBucket[size];
+            for (int i = 0; i < size; i++) {
+                ReservationTime one = timeList.get(i);
                 one.setCounselorId(userId);
                 one.setDayId(id);
+                buckets[i] = new TimeBucket(one.getStartTime(), one.getEndTime());
+            }
+            TimeBucket union = TimeBucket.union(buckets);
+            if (union != null) {
+                throw new ServiceException("可预约时间有重复");
             }
             timeMapper.insert(timeList);
         }