In response to such characteristics of FAO signaling systems for urban rail transit as high technical requirements and complex interface relationships,in view of such development trends of latest technologies as cloud-based FAO signaling systems,and in compliance with European standards,this paper proposes a test proposal for FAO signaling systems based on the"V"model cycle control method.It also analyzes the test purposes and test platforms and test items for various stages.Thus,it provides guidance and reference for the on-schedule opening of FAO projects in full functions by proposing a test method.