Frame structure, photovoltaic module and construction method

The embodiment of the invention provides a frame structure, a photovoltaic module and a construction method, and relates to the field of photovoltaic modules. The frame structure comprises a basic frame body and a plurality of fixing pieces, wherein the basic frame body comprises frame edges which are connected end to end; the fixing parts are distributed in the length direction of the frame edge, the bottoms of the fixing parts are fixed to the frame edge, the tops of the fixing parts are provided with bearing plates, the bearing plates of all the fixing parts jointly form a bearing face used for bearing the laminated part, and the bearing face is located above the basic frame body. According to the frame structure and the photovoltaic module provided by the embodiment of the invention, the module can realize the function of preventing water accumulation and dust accumulation under various installation conditions, and the back efficiency can be improved, so that the power generation efficiency of the module