diff --git a/mongo-plus-annotation/src/main/java/com/mongoplus/enums/CommonOperators.java b/mongo-plus-annotation/src/main/java/com/mongoplus/enums/CommonOperators.java
index 79bc0a81538c4046d55bb2680a3ce5b7b271e316..84808d7407578c929d572f070b1f2a53bfddffaf 100644
--- a/mongo-plus-annotation/src/main/java/com/mongoplus/enums/CommonOperators.java
+++ b/mongo-plus-annotation/src/main/java/com/mongoplus/enums/CommonOperators.java
@@ -49,6 +49,7 @@ public enum CommonOperators {
 
     CONCAT("$concat"),
 
+    DATE_TRUNC("$dateTrunc"),
     ;
 
     private final String operator;
diff --git a/mongo-plus-core/src/main/java/com/mongoplus/aggregate/pipeline/AggregateOperator.java b/mongo-plus-core/src/main/java/com/mongoplus/aggregate/pipeline/AggregateOperator.java
index 5ee3f2736baf9ba783695fbe13c1058eb634651b..d146c8a2bed28a8272d09862bd9c6c36ddacfb4a 100644
--- a/mongo-plus-core/src/main/java/com/mongoplus/aggregate/pipeline/AggregateOperator.java
+++ b/mongo-plus-core/src/main/java/com/mongoplus/aggregate/pipeline/AggregateOperator.java
@@ -1,13 +1,14 @@
 package com.mongoplus.aggregate.pipeline;
 
+import com.mongoplus.bson.MongoPlusDocument;
+import com.mongoplus.support.SFunction;
 import org.bson.Document;
 import org.bson.conversions.Bson;
 
 import java.util.Arrays;
 import java.util.List;
 
-import static com.mongoplus.enums.CommonOperators.CONCAT;
-import static com.mongoplus.enums.CommonOperators.CONCAT_ARRAYS;
+import static com.mongoplus.enums.CommonOperators.*;
 
 /**
  * 聚合操作符
@@ -42,4 +43,39 @@ public class AggregateOperator {
         return new Document(CONCAT.getOperator(), expressions);
     }
 
+
+    /**
+     * $dateTrunc操作符
+     *
+     * @param field       字段
+     *                    <br>
+     * @param unit        单位可以是能被解析为下列值的表达式：year、quarter、week、month、day、hour、minute、second、millisecond，与binSize一起指定时间段
+     *                    <br>
+     * @param binSize     时间数值，以表达式形式指定，必须是非零正数。默认值为 1。
+     *                    <br>
+     * @param startOfWeek 指定周开始的天，只有当单位是周时可用，缺省为Sunday，startOfWeek可以是一个表达式，但必须能够被解析为：monday (或 mon)、tuesday (或 tue)、wednesday (或 wed)、thursday (或 thu)、friday (或 fri)、saturday (或 sat)、sunday (或 sun)
+     *                    <br>
+     * @param timezone    执行操作的时区，<tzExpression>必须是能被解析为奥尔森时区标识符格式的字符串或UTC偏移量，如果timezone不指定，返回值显示为UTC
+     */
+    public static Bson dateTrunc(SFunction<?, ?> field, String unit, Integer binSize, String startOfWeek, String timezone) {
+        return dateTrunc(field.getFieldNameLineOption(), unit, binSize, startOfWeek, timezone);
+    }
+
+    public static Bson dateTrunc(String field, String unit, Integer binSize, String startOfWeek, String timezone) {
+        return new Document(DATE_TRUNC.getOperator(), new MongoPlusDocument() {{
+            putIsNotNull("date", field);
+            putIsNotNull("unit", unit);
+            putIsNotNull("binSize", binSize);
+            putIsNotNull("timezone", timezone);
+            putIsNotNull("startOfWeek", startOfWeek);
+        }});
+    }
+
+    public static Bson dateTrunc(String field, String unit) {
+        return dateTrunc(field, unit, null, null, null);
+    }
+
+    public static Bson dateTrunc(SFunction<?, ?> field, String unit) {
+        return dateTrunc(field, unit, null, null, null);
+    }
 }