The present invention relates to a side rail and a manufacturing method of a medical bed. More particularly, the patient by being in a single injection molding process in the manufacture of the upper frame in accordance with the bed so as not to fall from the upper frame of the respective side rails installed on both sides of the bed body is composed of a synthetic resin material can be produced very quickly and easily, the upper frame will be mass-produced by the side of the rail, and a manufacturing method of a medical bed and to increase the production efficiency of a medical bed. according to the present invention, a plurality of the upper top frame bracket is provided at a predetermined interval on the lower side and a plurality of pivoting frames each one end rotatably mounted to the upper bracket and can be rotated to the other end of the respective pivoting frame according as it is associated with the plurality of the lower bracket, the lower frame installed at a predetermined interval on the upper side, is provided at one side of the upper frame constituting the side rail of a medical bed consisting of a standing device for holding and releasing the standing state of the pivoting frame, the The upper bracket upper frame side rail of a medical bed characterized by consisting of a synthetic resin including The top having a plurality of the upper frame and the bracket, the upper bracket, each one end rotatably installed on the frame and a plurality of rotation, each of the plurality of rotating the lower bracket is operably connected to the other end of the pivoting frame is provided at a predetermined interval on the upper side the lower frame and, as installed in a side of the upper frame to prepare a side rail of a medical bed consisting of a standing device for holding and releasing the standing state of the pivoting frame, the upper frame including an upper bracket to the lower parts of ABS resin, Injection method for manufacturing a side rail of a medica
