Wireless OTA upgrading method and system based on embedded operating system

The invention discloses a wireless OTA upgrading method and system based on an embedded operating system, and the method comprises the steps: adaptively selecting a plurality of communication modules running in the embedded operating system, and communicating with an OTA server through data dialing, the communication modules at least comprising a 4G module and a BLE module; obtaining a latest firmware version to be upgraded through an FTP protocol, verifying firmware and obtaining partition information; formatting the application startup sector, and updating the application sector and the application startup sector according to the latest firmware version; and setting the OTA mode as an application mode, stopping data dialing, closing the selected communication module, restarting the equipment and entering the application mode. By utilizing the embodiment of the invention, the advantages of dual-mode communication can be integrated in the embedded operating system, and efficient, stable and flexible wireless