Based on two sides milling and polishing elements,a suit of Grin lens assistant jig design was brought forward. From technics characteristic and practice aspect,assistant jigs were analysed and proved. By times without number batch machining,this suit of assistant jig can achieve demand of Grin lens high efficiency batch make technology. Comparisons indicate that whole product line technics turns easy,procedure time in production are shortened and cost in assistant material are reduced. This research results showed that two sides milling and polishing means is a new useful and practical way.