To provide a construction method for a multistage solar cell panel to remove snow accumulated on the solar panel by melting it.

The solar cell panel 1 is constructed having a slope inclined while facing the east or west. When side faces of solar cell panels are coupled, they are combined in mountain shapes 2 and parts of valley grooves 3 of the mountain shapes serve as slideways, thereby providing flow-away routes for melted snow. A low-temperature type snow melting heater 4 is attached below parts of the valley grooves 3 of the mountain shapes, and actuated to operate up to snow melting temperature by a temperature sensor 6 which senses snow accumulation. A bottom plate 5 is provided below the low-temperature type snow melting heater.