Test data display control method for store management system test device

The invention provides a test data display control method for a store management system test device. The method is used for display period control of data on a man-machine interaction interface when the test device performs ground detection on the store management system. A starting synchronization semaphore, a test data receiving synchronization semaphore and a shared memory are designed and used for a test management module and a function performance test module to perform inter-process communication; and hundreds of detection data needed to be finished by the function performance test module are classified according to functions (or a data quantity), so that a mode of sending the detection data to the test management module at a time for display is converted into a mode of sending the detection data to the test management module at multiple times for display. The method has the advantages that the control time of sending test data to the man-machine interface for display during man-machine interaction is s