diff --git a/DmKeyGenerator b/DmKeyGenerator
new file mode 100644
index 0000000000000000000000000000000000000000..279837ffdbb28ce58a32912404c066e1be4d5d55
--- /dev/null
+++ b/DmKeyGenerator
@@ -0,0 +1,27 @@
+package com.baomidou.mybatisplus.extension.incrementer;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.core.incrementer.IKeyGenerator;
+
+/**
+ * DM Sequence
+ *
+ * @author cdtjj
+ * @since 2022-04-22
+ */
+
+public class DmKeyGenerator implements IKeyGenerator {
+	@Override
+	public String executeSql(String incrementerName) {
+		// TODO Auto-generated method stub	
+		return "SELECT " + incrementerName + ".NEXTVAL FROM DUAL";
+	}
+
+	@Override
+	public DbType dbType() {
+		// TODO Auto-generated method stub	
+		return DbType.DM;
+	}
+}