Photovoltaic module arrangement structure for sloping roof of lightweight steel roof truss

The invention discloses a photovoltaic module arrangement structure for a sloping roof of a lightweight steel roof truss, which comprises a first roof structure with a positive slant angle, and a second roof structure with a negative slant angle. First photovoltaic modules are disposed on the first roof structure, and second photovoltaic modules are disposed on the second roof structure. A support frame in a wedged shape is disposed between the second roof structure and the second photovoltaic components. The photovoltaic components on the shadow side of the photovoltaic module arrangement structure are substantially horizontal by the aid of the wedged support frame. Using the photovoltaic module arrangement structure can reduce solar radiation loss and improve power generating efficiency.