diff --git a/basic-util/src/main/java/ink/wgink/util/IdCardUtil.java b/basic-util/src/main/java/ink/wgink/util/IdCardUtil.java
index 00e3eadf..2dfe028e 100644
--- a/basic-util/src/main/java/ink/wgink/util/IdCardUtil.java
+++ b/basic-util/src/main/java/ink/wgink/util/IdCardUtil.java
@@ -12,6 +12,19 @@ import org.joda.time.DateTime;
  */
 public class IdCardUtil {
 
+    /**
+     * 获得生日
+     *
+     * @param idCard
+     * @return
+     */
+    public static String getBirth(String idCard) {
+        if (!RegexUtil.isIdentity(idCard)) {
+            throw new ParamsException("身份证格式错误");
+        }
+        return idCard.substring(6, 10) + "-" + idCard.substring(10, 12) + "-" + idCard.substring(12, 14);
+    }
+
     /**
      * 获取性别
      *