In recent years, with the prevailing of outdoor activity, the bicycle has already become one of the most attractive products on equipment market of the outdoor activity, the bicycle styles on the market are numerous at present, but after most products still introduce the new car fund with the leading brand industry person, other same trades and then imitate with its products. Thesis this purpose lie in use concept , project of design method, put forward one systematized two design theory , bicycle of system. Investigate the basic demand for the business bicycle at first, carry on the performance specification of setting up two bicycles system of the decision¡FSecondly the structure of the frame selected separately, ago it suspend organization in midair, after suspend by organization, handlebar in midair it adjust there aren't device ; Use morphology matrix to solve systematically finally, set up the procedure of formating at the same time , solve the system formated and specify to design.