Upgrading method and device of terminal equipment, equipment and storage medium

The invention provides a terminal equipment upgrading method and device, equipment and a storage medium, and the method comprises the steps: obtaining an upgrading package after a system upgrading request is detected, wherein the upgrading package comprises a first version and a second version of a system installation file, and the first version is higher than the second version; executing a system upgrading operation, and installing the system installation file of the first version; after the system upgrading operation is executed, checking whether the system is successfully upgraded or not according to a preset checking strategy; and if the upgrading is not successful, executing a system degradation operation, and installing the system installation file of the second version to control the system of the terminal equipment to recover to the second version. Therefore, the space occupancy rate of the terminal equipment is reduced. 本申请提出了一种终端设备的升级方法、装置、设备及存储介质，其中，方法包括：当检测到系统升级请求后，获取升级包，升级包包括第一版本和第二版本的系统安装文件，第一版