The invention relates to a solar photoelectric photo-thermal building integrated composite plate which comprises a shell 4, a support frame 3, a heat absorber 2, a connection pipe 13, a vacuum glass plate 1, a thermal insulation plate 5, a thermal insulation side plate 11, a color steel bottom plate 6, sealing plates 12 and the like. The composite plate provided by the invention can be used as a generation heating unit, butt-joint tongue-and-grooves are arranged on the left and right sides, and the sealing plates are arranged at the upper and lower ends; the components are in lap joint with each other to form a whole roof panel or wall facade, and the roof panel and wall decoration can be completely replaced; thermal insulation and waterproof effects can be realized on the roof, and thermal insulation and decoration effects can be realized for the wall facade; particularly, hot water is generated by absorbing the heat of a power generation plate at the time of power generation; and moreover, a lighting window, a ventilating window and the like also can be designed on the roof panel or wall facade. Through the invention, clean energy for solar power generation, lighting, central water heating and central air conditioning can be provided for the building to achieve low-carbon or even micro-carbon life.