The present invention relates to a chair that allows a person to sit on his knees for a long time by putting his / her weight on the chair in a comfortable position when kneeling, and more particularly, when he is kneeling for a long time, especially when praying. By dispersing without focusing on the leg, it is provided to prevent the legs from numbing or squeezing even when praying for a long time. The connecting brackets can be assembled at both ends of the seat plate, and the lower part of the connecting bracket can be folded and assembled. This support bracket is provided, and the lower part thereof is assembled to assemble a height adjusting member having various heights so that the height can be adjusted. About a chiropractic chair, One embodiment of the specific solution of the present invention, "A rectangular seat plate 10 that supports the hips or thighs of the user at a predetermined height with respect to the floor to support the load of the human body, and an insertion groove 200 at one side such that both sides of the seat plate 10 can be inserted therein. Is provided with a plurality of fastening holes 201 is drilled on the bottom surface of the insertion groove 200 and the plurality of connecting pieces 203 perforated through-hole 202 in the center while maintaining a gap on both sides of the other bottom The protruding connection bracket 20 and the threaded grooves 300 are formed near both ends of the bottom surface, respectively, and are formed to be inclined from one side to the other side, and a plurality of reinforcing ribs 301 are formed on the bottom surface. The coupling piece 303 and the coupling piece 303 which are provided between the plurality of connection pieces 203 in a state in which the rotation hole 302 is drilled in the longitudinal direction at both ends of the upper side of the reinforcing rib 301. Inside The support bracket 30 having the extension piece 304 and the support bracket 30 are seated on the inner circumferential surf
