Method and system for replacing third-party application system theme

The invention relates to the technical field of system application themes, in particular to a method and a system for replacing a third-party application system theme, and the method mainly comprisesthe following steps: S1, uploading theme package data of each theme to a database of a server side; S2, selecting the theme pack data of one theme through an application enabling platform of the server side to request for downloading by the mobile terminal; S3, after the application enabling platform receives a downloading request of the mobile terminal, pushing the corresponding theme pack data to a third-party application system connected with the application enabling platform; and S4, receiving and analyzing the theme pack data by the third-party application system, and updating the application theme of the third-party application system. According to the method and the device, the problem that after the existing third-party application system leaves the factory, the user has no permission and cannot modify the