The application discloses a polyimide screen with a reinforcing layer fixed on the surface and a preparation method thereof, and belongs to the technical field of screen printing screen manufacturing, and has the technical scheme as follows: the polyimide screen with the reinforcing layer fixed on the surface comprises a polyimide screen body, a titaniumtransition layer fixed on the polyimide screen body through gas deposition and a titanium-doped amorphous carbon composite layer deposited on the titaniumtransition layer; the titanium transition layer is deposited on the polyimide screen body as a buffer layer, and the titanium-doped amorphous carbon composite layer is deposited on the titanium transition layer, so that the hardness and wear resistance of the screen are effectively improved.