The invention discloses a clamping ring for thyristor fixation and a manufacturing method of the clamping ring. The clamping ring integrated into one piece and used to clamp and fix a thyristor comprises an internal insulated wearing layer, a winding structure layer and an outer insulation layer arranged successively from inside to outside, a clamping groove used for clamping and fixing the thyristor and integrated into one piece is formed in the internal side surface of the internal insulated wearing layer, and the clamping groove comprises a rectangular portion and an arc portion integratedto the rectangular portion. The method comprises the following steps that 1) the internal insulated wearing layer is formed; 2) the winding structure layer is manufactured; 3) pressurizing and heat-curing are carried out; 4) cooling, demolding and segmenting are carried out; and 5) the outer insulation layer is formed. The clamping ring integrated into one piece does not include a metal connectionstructure, the insulation defect of a pull bar connection structure is overcome effectively, the problems of creep flow and stress reflection and the problem in reliability in hardware and insulatedmaterial connection are solved effectively, the manufacturing cost is low and the production efficiency is high.