The invention provides an automatic use case testing method and system and a storage medium. The automatic use case testing method comprises the steps of obtaining a service model of a service object,and generating an operation command and operation data of a service type; Encapsulating the business type, the operation command and the operation data for different test ends, and establishing an automatic use case; And carrying out automatic use case tests on different test ends respectively. By adopting the technical scheme of the invention, on one hand, the test cases are separated for different test ends through the service model and can be suitable for multi-end and multi-test types, so that the automation complexity can be reduced, and the case reusability can be improved; And on the other hand, a tester only pays close attention to the design of the business process and the scene use case, and does not pay close attention to the operation realization of the business scene on a plurality of test terminals, so that the high-coverage use case can be better designed, and the automatic output is improved.