Abstract: The low code platform based on model driven can produce a large number of application systems by writing a small amount of code or without coding,which puts forward higher requirements for the reliability,stability and ease of use of these rapid customization application systems.Testing is an important means to ensure the high quality and reliability of these software.There are two shortcomings in traditional automated testing.One is that the efficiency of obtaining the location information of page elements by manually viewing the source code is very low,the other is that when the page changes frequently,the page element cannot be located,which leads to test failure.The rapid customization of low code platform produces a lot of application systems.The page data of the system is huge and often changes,so the traditional automatic test method is not applicable.By reading the source code of the page from the background database to get the content of the page,this paper analyzes the source code with the depth first search method,obtains the location expression and element type of the whole page element,and carries out automatic test on the form combining with the test data and the URL of the form.For different application systems with different interfaces and functions,an automatic test management system is built to test different application systems,which is well used in practical projects and greatly improves the efficiency.

Key words: Automatic testing, Batch acquisition of positioning information, Model driven