The invention provides a solar aluminium alloy window comprising a window frame, a transmission mechanism, a revolving mechanism and a solar power supply unit. The transmission mechanism comprises a motor and worms, and the worms connected with the motor are in series connection. The revolving mechanism comprises worm gears, a revolving shaft and window sashes, the worm gears are meshed with the worms, the revolving shaft is connected with the worm gears, and the window sashes are fixedly mounted on the revolving shaft. The solar power supply unit comprises solar panels, a first light sensor and a processing unit, wherein the solar panels, the first light sensor and the processing unit are connected in sequence, and the processing unit is electrically connected with the motor. The first light sensor transmits detected optical signals to the processing unit which controls the revolving shaft to rotate through the motor, so that light acceptance angles of the solar panels can be adjusted. The solar aluminum alloy window simple and integral in structure can be installed in any houses with solar energy effectively utilized. The solar aluminum alloy window is attractive and practical and green, part of the electricity demand can be met, so that building integrated photovoltaics can be realized.