The present invention is applicable to the technical field of automotive electronics, and provided thereby are a data refreshing method and device, as well as a computer-readable storage medium, the method comprising: acquiring a communication protocol corresponding to the vehicle type of a current user vehicle (S101); analyzing the communication protocol, and acquiring communication-related parameters (S102); generating an optimal parameter set which matches the current user vehicle (S103); and refreshing an engine control unit (ECU) data file of the user vehicle according to the optimal parameter set (S104). It is possible to guarantee that data parameters in a communication process are well maintained by means of an optimal parameter set, thus improving the success rate of refreshing and achieving faster and better refreshing.
