Combined with typical anti-telephoto lens design method and PWC method, initial structure was built from theoretical model and assisted by ZEMAX. The operating wavelengths bands of system are 436 nm, 486 nm, 546 nm, 587 nm and 656 nm. F# is 1.5. Full field of view is 160°. This optical length of 18.5 mm is applied to the lens of car rear view system. The lens has significant improvement in existing product indicators in the market: the stability in operating temperature and its reasonable tolerance range. The result shows that the lens has more excellent effects, lower prices and stronger expressive than that who has not combined with the ideal anti-telephoto model, PWC method and practical requirements. It can provide useful reference for lens design in related fields.