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The application relates to the technical field of ultrasonic water meters, in particular to an ultrasonic water meter intelligent test system based on 4G communication and a test method, wherein the system comprises a hardware test module, a 4G communication module, a data processing module, a parameter configuration module and a man-machine interface; the hardware test module is used for connecting an ultrasonic water meter to be tested, collecting flow data such as instantaneous flow and cumulative flow of the water meter through a special interface, and simultaneously detecting the working voltage and the environmental temperature of the ultrasonic water meter to be tested; the 4G communication module supports LTE-Cat1 and above communication modes, can establish a stable wireless communication connection, realizes test instruction issuing and test data uploading, and the data processing module comprises a data storage unit, a data analysis unit and a chart generation unit. In the working process of the ultrasonic water meter intelligent test system based on 4G communication, the problems of low test efficiency, incomplete data recording and communication performance test loss in the prior art are solved.