The invention discloses a building energy-saving aluminum alloy door and window. The building energy-saving aluminum alloy door and window can solve the problems that a traditional aluminum alloy doorand window still needs to be manually opened and closed to achieve the adjustment of the ventilation performance, which is troublesome; the traditional aluminum alloy door and window adopts a whole piece of glass as the core component of the door and window, which is not suitable for strong winds, heavy rains or even typhoon weather, has defects of insufficient safety performance; when damaged, the glass needs to be completely replaced, so that the use does extremely not save the energy, and the replacement cost is also high. The building energy-saving aluminum alloy door and window comprisesan outer frame and a window frame hinged to the outer frame, two hinges are arranged at the joint between the outer frame and the window frame, a movable chain is arranged between the bottom of the window frame and the outer frame, a handle is welded on the outer wall of the window frame, the window frame is provided with a mounting groove use for mounting the glass, the edges of the four sides of the side wall of the window frame are provided with sealing edges, and the inner walls of the two sides of the mounting groove is provided with side grooves.