Taking the manufacturing process and equipment of high-precision complex profile cutting tools as the research object,and taking the specialized cutting tools for mushroom type blade root profile machining as the starting point,by analyzing the characteristics of the blade root profile and the advantages and disadvantages of the machining process,it was confirmed that single side twice forming machining was the tool machining process plan.On this basis,the contour accuracy of the tool,the surface roughness of the front and rear tool surfaces,and other parameters and accuracy requirements,were determined.By analyzing the processing requirements of specialized cutting tools,the overall layout and structural scheme of the specialized grinding machine were determined,and the structure of the grinding device,a key component of the machine tool,was specifically designed and elaborated.The structural advantages of the grinding point on the extension line of the B -axis rotation axis were analyzed.It could be concluded that the angular error of the B -axis rotation did not cause any deviation in the position of the grinding point,which could effectively improve the machining accuracy of the cutting tool.To verify the rationality of the design,through the manufacturing and assembly of the machine tool,Renishao XK10 laser calibration instrument was used to test.It can be seen that the geometric accuracy meets the design requirements.Finally,the designed tool processing process plan and dedicated grinding machine were used to process a certain mushroom shaped line tool.The Zoller tester test results show that the tool contour tolerance is ±0.005 mm on the working surface,and ±0.015 mm for the rest.