Abstract: Under support of information technology, great changes have taken place in agricultural production．With information technology, agricultural production has gradually realized development of intensification, high efficiency and intelligence．Based on this background, a long-stroke integrated water and fertilizer spraying device driven by intelligent tracked vehicle was designed, which included intelligent motor, flox coupling, support plate, sprinkler head, speed sensor and other components．At the same time, an efficient control system was designed．The whole system included homepage system interface, monitoring system interface, data display interface, real-time parameter interface and other parts．And real-time monitoring of GPS, fertilizer EC value, pH value and other information, real-time monitoring of surrounding environment changes, at the same time will be transmitted to control terminal real-time data, to achieve purpose of remote control．Through control system, constantly adjusted fertilizer ratio and spraying speed according to environment, to make growth of entire crop mechanized and intelligent．