Disclosed is a separable wheelchair for the public, the elderly, the infirm, and the disabled. The wheelchair of the present invention comprises a lower frame including a transportation means; and an upper frame including a seat unit combined to the lower frame to be able to be detached from the lower frame and a back unit. The lower frame has bar-shaped first and second seating units on the front and rear sides of the upper surfaces thereof in a widthwise direction; a hook-shaped seating assistance unit which is capable of supporting the front and rear sided of the first seating unit of the side of the lower frame and is installed on the lower surface of the upper frame corresponding to the first seating unit of the side of lower frame; and a seating unit which is capable of supporting the rear side and the lower part of the second seating unit on the side of the lower frame and is combined to the lower surface of the upper frame corresponding to the second seating unit of the side of the lower frame to be able to rotate toward the front and rear sides of the lower frame. In the wheelchair of the present invention, the upper frame comprises an angle adjustment unit, which adjusts the angle of the back unit by tilting the back unit from or to the seat unit, installed thereon. The angle adjustment unit includes a slide unit combined to the back unit to be able to slide vertically on the back unit; and link members which are combined to each other to be able to rotate around each other, wherein each link member has one end combined to the seat unit by a hinge and the other end combined to both ends of the slide unit by a hinge. The slide unit completes angle adjustment by the help of a coupling unit.일반인, 장애인 및 노약자를 위한 분리 가능한 휠체어가 개시된다. 본 발명의 휠체어는, 이동수단을 포함하는 하부프레임; 및 상기 하부프레임에 대하여 탈착 가능하게 결합되는 착좌부와 등받이부를 포함하는 상부프레임을 포함하며, 상기 하부프레임의 상면의 전방 및 후방에는 횡방향으로 바형태의 제1안착구와 제2안착구가 형성되어있고, 상기 하부프레임측 제1안착구에 대응되는 상기 상부프레임의 하면에는 상기 하부프레임측 제1안착구의 후방과 하부를 지지할 수 있는 갈고리 형태의 안착보조구가 마련되고,