The invention discloses a digital movie projection system and a digital movie projection method. The digital movie projection system comprises a projector system and an image acquisition and analysis system, wherein a video input module (such as an IMB (integrated media block)), an image optimization processing module and a video output module (such as an ICP (integrated control panel)) are set in the projector system; the image optimization processing module is electrically connected with the video input and output modules and the image acquisition and analysis system outside the projector system respectively. According to the system and the method, the image optimization processing module, the video input module and the video output module are integrated in the projector system, and the image optimization processing module is electrically connected with the video input and output modules respectively, and is arranged in the projector system, so that the security and the stability of image information in the whole movie projection process are ensured.