Abstract: According to using and characteristic of vehicle managing in small area，a scheme on effective and practical park intelligent management system is designed.RF identifying，IC card managing，vehicle automatism scouting and computer intelligent controlling are better tied in this scheme.It has a best truss for need of user and owner，it has characteristic of advanced，credibility，security，convenience and shortcut.In addition，the automatic recognition of license plate which is the key technology of the system is discussed detailedly.