When the visually impaired or blind people are walking, they hold a stick to beat around to determine the direction in which they can walk. This process will make them use more energy to detect the forward path. In addition, when these people are tired from walking, the stick also needs to have the support function, just like the crutches used by ordinary people, to increase stability and safety when standing to avoid slipping. Therefore, it is necessary to design a universal walking aid with labor-saving, support function, and adjustable length.