diff --git a/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
index 9b35ace..6ae9015 100644
--- a/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
+++ b/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -1148,6 +1148,7 @@ public class ExcelUtil<T>
                 String dictType = attr.dictType();
                 if (StringUtils.isNotEmpty(dateFormat) && StringUtils.isNotNull(value))
                 {
+                    cell.getCellStyle().setDataFormat(this.wb.getCreationHelper().createDataFormat().getFormat(dateFormat));
                     cell.setCellValue(parseDateToStr(dateFormat, value));
                 }
                 else if (StringUtils.isNotEmpty(readConverterExp) && StringUtils.isNotNull(value))