The method of speed ratio of controlling of metal V-belt continuously variable transmission based on driving intention was suggested using fuzzy mathematics. According to this method, the target speed ratio between economical and drivable mode can be gotten instead of traditional manual selection. The control with the target speed ratio based on the driving intention index of fuzzy control rules can get a good economy and drivability, the bump, shake and flicker of the engine can be avoided. Finally, the controller using the target speed ratio control logic is designed and the effectiveness is validated.