The broadcast population coverage has increased to 96% in china. Information services by radio have wide coverage, low cost, easy to grass-roots farmers to accept etc. characteristics. In order to play the better role of broadcast information service in rural area, the author R & D agricultural information service system based on addressable broadcast, which transformed from traditional broadcast with a set of data encoding/decoding equipments based on addressable broadcast. The agricultural information service system based on addressable broadcast can provide personalized information services for grassroots farmers, relying on a wealth of agricultural information resources, by means of controlling the addressable speakers with microprocessor. The system has five parts, which has been applied in huailai city Hebei province. The system has provided personalized information about grape and vegetable for two villages for one and a half years.