Abstract: As a jumped-up industry,city agriculture has newer function and character and great developping potential than ancient agriculture. .However ,city agriculture has developped slowly in our counrty during the last several years for the subjective and objective reasons.Therefor,we must reference and absorb other countries' experience and adopt positive measures so that series of innotive systemsof city agriculture's development can be built in our country and its development will promote healthily and orderly.