Abstract: The embodiments of disclosure provide a method and device for loading a system Application (APP) installation package, and a terminal. The method includes that: before update processing of a system APP installation package, the system APP installation package is renamed as a system APP installation backup package; whether loading according to a system APP installation update package is successful is judged, wherein the system APP installation update package is the system APP installation package acquired after updating a copied version formed by copying the system APP installation backup package; and in a case that a judging result is that loading according to the system APP installation update package is not successful, loading is performed according to the system APP installation backup package, thereby achieving the effect of improving system stability and user experience.