The utility model discloses a thin -film solar cell roof, including solar cell layer, solar cell layer is including the amorphous silicon thin film solar cell and the cadmium telluride film solar cell that establish at same working face, wherein, amorphous silicon thin film solar cell allows to see through the ruddiness of the required partial light intensity of vegetation, cadmium telluride thin -film solar cell allows to see through the blue light of the required partial light intensity of vegetation, the sunlight that sees through solar cell layer like this can satisfy the illumination needs of vegetation to ruddiness and blue light better, simultaneously because amorphous silicon thin film solar cell and cadmium telluride film solar cell use simultaneously, thereby photovoltaic power generation efficiency has been improved, realized really that photovoltaic warmhouse booth carries out the dual function of photovoltaic power generation and crops planting. The utility model discloses a photovoltaic warmhouse booth who uses above -mentioned thin -film solar cell roof has still been provided.