diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/quality/service/ExBaseService.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/quality/service/ExBaseService.java
new file mode 100644
index 0000000..f0826d1
--- /dev/null
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/quality/service/ExBaseService.java
@@ -0,0 +1,13 @@
+package org.springblade.desk.quality.service;
+
+import org.springblade.core.mp.base.BaseService;
+
+/**
+ * 扩展框架中的BaseService.
+ *
+ * @param <T>
+ */
+public interface ExBaseService<T> extends BaseService<T> {
+
+    boolean checkIdValid(final Long id);
+}
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/quality/service/ExBaseServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/quality/service/ExBaseServiceImpl.java
new file mode 100644
index 0000000..adb46bf
--- /dev/null
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/quality/service/ExBaseServiceImpl.java
@@ -0,0 +1,39 @@
+package org.springblade.desk.quality.service;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.springblade.core.mp.base.BaseEntity;
+import org.springblade.core.mp.base.BaseServiceImpl;
+
+/**
+ * 扩展框架中的BaseServiceImpl.
+ *
+ * @param <M>
+ * @param <T>
+ */
+public class ExBaseServiceImpl<M extends BaseMapper<T>, T extends BaseEntity>
+        extends BaseServiceImpl<M, T> implements ExBaseService<T> {
+
+    /**
+     * id 19位的最小值
+     */
+    private static final long MIN_19_ID = 1000000000000000000L;
+
+    /**
+     * 1123598817738675201
+     *
+     * @param id blade id
+     * @return true 有效id,false 无效id
+     */
+    public boolean checkIdValid(final Long id) {
+        if (id == null) {
+            return false;
+        }
+        if (id <= 0L) {
+            return false;
+        }
+        if (id == Long.MAX_VALUE) {
+            return true;
+        }
+        return id >= MIN_19_ID;
+    }
+}