The utility model discloses a roof membrane power generation glass mounting device relates to glass mounting equipment field, wherein, roof membrane power generation glass mounting device includes: base subassembly, is located in steel structure, briquetting piece subassembly, including briquetting piece body and connecting bolt, briquetting piece body is used for pressing glass, and connecting bolt is connected briquetting piece body and steel structure respectively, briquetting piece elevating unit, is located in base subassembly, and is used for driving briquetting piece body elevating, screw fixing unit, is located in base subassembly, and is used for driving connecting bolt rotation to lock fixed in steel structure, and glass moving unit, including mobile drive arrangement and sucking disc subassembly, mobile drive arrangement is located in base subassembly, and mobile drive arrangement drive connection sucking disc subassembly and drive sucking disc subassembly to move, and sucking disc subassembly is used for adsorbing glass. The roof membrane power generation glass mounting device provided by the utility model technical scheme can reduce the labor intensity of installation worker, and improve the efficiency.