Aluminum alloy casement window

The utility model discloses an aluminum alloy casement window. The aluminum alloy casement window comprises a window frame, a window fastener and a casement, wherein the window fastener is located between the window frame and the casement, the window frame is provided with a wire press groove, a cushion bar is arranged on the upper portion of the groove opening of the wire press groove, one end of the window fastener is fixedly arranged on the window frame through the cushion bar, and the other end of the window fastener is fixedly arranged on the casement. According to the aluminum alloy casement, due to the fact that the cushion bar is arranged on the upper portion of the groove opening of the wire press groove, one end of the window fastener can be fixedly arranged on the window frame through the cushion bar, milling machining carried out on the wire press groove is avoided, and the window fastener can be conveniently and quickly mounted on the window frame.