By studying the characteristics of farmers for agricultural information in China, build technology structure for the agricultural information service system on the smartphone platform; made combination of data mining technology based on Web Services and Android smartphone technology. Heritrix technology was used to collect the specific agricultural information, through the Web Services data mining, system provide the most direct agricultural information service to the Android platform client, and made mobile communication network and computer network to better serve information pushing of agricultural science & technology and agricultural products online sales process.