Execution method for screen mirroring process of electronic devices

An execution method for screen mirroring process of electronic devices, which is used between a sender device and a receiver device is disclosed. The sender device first emits a download request. The receiver device collects its own connection information after receiving the download request, and uses the connection information as a file name of an executable connection file. The content of the connection file includes a mirroring software. After being downloaded and executed at the sender device, the connection file extracts the connection information from its own file name, and launches the mirroring software according to the extracted connection information. Therefore, the mirroring software establishes a connection automatically between the sender device and the receiver device by using the connection information.