The lab electrode vacuum coating machine uses vacuum chuck and oil-free vacuum pump to adsorb and fix the substrate, so that there is no wrinkle on the substrate during the coating process, which makes the coating more uniform and smooth, and also prevents the substrate from being polluted by oil in the vacuum pump. During the working process, the film width remains unchanged, and the film thickness can be adjusted according to the micrometer above the scraper. If the gap between the scraper and the substrate is small, the film thickness is thin; If the gap between the scraper and the substrate is large, the film prepared is thick. The film length can reach 800 mm with micrometer adjustable film applicator. Equipped with automatic push rod, it can prepare smooth coating on any material within the range of 250mm wide and 800mm long. It is an ideal tool for low-cost research and development and fabrication of lithium battery electrode materials.