diff --git a/pqs-device/device-api/src/main/java/com/njcn/device/pojo/param/DeviceInfoParam.java b/pqs-device/device-api/src/main/java/com/njcn/device/pojo/param/DeviceInfoParam.java
index f89e5b923..1bc52d1ac 100644
--- a/pqs-device/device-api/src/main/java/com/njcn/device/pojo/param/DeviceInfoParam.java
+++ b/pqs-device/device-api/src/main/java/com/njcn/device/pojo/param/DeviceInfoParam.java
@@ -130,12 +130,10 @@ public class DeviceInfoParam implements Serializable {
 
         @ApiModelProperty("开始时间")
         @Pattern(regexp = PatternRegex.TIME_FORMAT, message = "时间格式错误")
-        @NotBlank(message = "起始时间不可为空")
         private String searchBeginTime;
 
         @ApiModelProperty("结束时间")
         @Pattern(regexp = PatternRegex.TIME_FORMAT, message = "时间格式错误")
-        @NotBlank(message = "结束时间不可为空")
         private String searchEndTime;
 
         @ApiModelProperty("时间范围标志 0.查询展示天 1.查询展示月")
@@ -148,12 +146,10 @@ public class DeviceInfoParam implements Serializable {
     public static class CompareBusinessParam extends BusinessParam{
 
         @ApiModelProperty("比较开始时间")
-        @NotBlank(message = "比较开始时间不可为空")
         @Pattern(regexp = PatternRegex.TIME_FORMAT, message = "时间格式错误")
         private String periodBeginTime;
 
         @ApiModelProperty("比较结束时间")
-        @NotBlank(message = "比较结束时间不可为空")
         @Pattern(regexp = PatternRegex.TIME_FORMAT, message = "时间格式错误")
         private String periodEndTime;