Abstract: This paper studies the manufacturing processing of the traditional AFA 3G spider finger, According to the problem that the AFA 3G spider finger cannot be automatically and continuously machined in the traditional manufacturing process. By improving U-shaped slot milling cutter and the ϕ 5.5 drill and the inner hole reamer the number of maching has increased signifisant; Milling product quantity from 50 improving to 300, drilling product quantity from 200 improving to 2000, the reaming product quantity from 100 improving to 500. The optimization of the manufacturing process of the AFA 3G spider finger not only can solve the problem of the abnormal breakage of the cutting tool and achieved the continuous maching of the product. In addition,the process not only reduces the labor intensity and improves the productivity, but also effectively improves the quality of product and reduce the cost of raw materials and tools.