The portable solar power experimental box is a solar photovoltaic power system which can provide practical teaching, testing, demonstration platform for the solar cell, controller and the sine wave inverter working principles. The working process is that the solar cell modules convert solar energy into low-voltage DC power firstly, then charging 12V battery through the controller, at the same time it will charge the inverter at the backside, inverter converts 12V DC into 220V AC, supply power to all kind of loads.