Method and apparatus for upgrading projector

The present invention discloses a method and an apparatus for upgrading a projector, and relates to the technical field of projection devices. The projector comprises a central control management module, and a digital light processing module, a signal front end processing module and a power supply module that are respectively connected with the central control management module. The method comprises: establishing a communication connection between an upper computer and the central control management module of the projector; and calling a software upgrade package in the upper computer, and through the central control management module, using the software upgrade package to respectively carry out upgrade on the central control management module, the digital light processing module, the signal front end processing module and the power supply module of the projector, so that the to-be-upgraded modules in the projector can be connected as a whole and can be managed in a unified manner through the central control m