The utility model relates to a compound door and window of detachable aluminum -wood, including timber compoment, aluminum door window, the timber compoment passes through buckle spare fixed mountingon the aluminum door window, aluminum -wood is compound, and door and window includes casement, window frame, glass, the casement passes through sealing strip and window frame fixed connection, glasspasses through wire clip and glass fixed block and casement fixed connection. The utility model discloses an effect is: the operation can be be at the construction field (site) reformed transform to installing door and window to this external member and supporting mounting process, also can reform transform the operation to mounting window not in the mill, makes aluminium door and window more pleasing to the eye to and theftproof (mosquito -proof) screen window is more convenient for changing, increases.