An improved structure of a stair lifting device, comprising: a lifting device for providing power, a joint member for engaging a displacement member and a motion assisting device or a carrying device, a motion assisting device for providing a user plane movement, and a carrying device capable of carrying a user； The lifting device includes a displacement member movable on the displacement passage, a power device connected to the displacement member and providing power thereof, and the user's motion assisting device and the displacement member are connected through the joint member group in a plurality of joint manners, or the carrier device is connected And the displacement member, and the power device provides the displacement member power to drive the user to move, without the need to additionally install the chair lift, directly use the original motion assist device or the carrying device to reach the destination floor, which is very convenient to use and can be used less The risk of displacement and lowering the cost of use.一種樓梯升降裝置之改良結構，包含提供動力的升降裝置、用以接合位移件與行動輔助裝置或承載裝置的接合件組、提供使用者平面移動的行動輔助裝置、可承載使用者的承載裝置；前述升降裝置包括可在位移通道上移動的位移件、與位移件連接並提供其動力的動力裝置；透過接合件組以多種接合態樣連接使用者的行動輔助裝置與位移件，或連接承載裝置與位移件，並由動力裝置提供位移件動力帶動使用者移動，無需額外安裝升降椅，直接使用原有的行動輔助裝置或是承載裝置即可到達目的樓層，使用上非常便利，並可降低使用者位移時的風險及降低使用成本。
