Terminal equipment OTA upgrading method and system

The invention relates to a terminal equipment OTA upgrading method . The OTA upgrading method comprises the following steps that the terminal equipment sends a software upgrading request; a platform receives the software upgrading request and returns upgrading task information to the terminal equipment, wherein the upgrading task information comprises version number information, an upgrading package downloading URL address and an upgrading mode; the terminal equipment prompts a user according to the upgrading mode and receives an upgrading operation instruction of the user; the terminal equipment downloads a software upgrading packet according to the upgrading operation instruction and an upgrading packet downloading URL address; and after finishing the downloading, the terminal equipmentexecutes an upgrading operation according to the software upgrading package. Correspondingly, the invention provides an upgrading system. According to the upgrading method, an upgrading mode can be actively provided for the t