Agriculture informationization is the inevitable trend of the world modern agricultural development, at present it is the most main bottleneck that rural informationization progress is slow in the course of Chinese rural informationization development, the last kilometer becomes a difficult problem to solve urgently. Based on the theory of participatory rural community, this article lead to analyze the core reason why exits the endocardial power deficiency of the last kilometers problem in China rural community and the restraint obstruct to the exterior intervention impetus function, researching the original data gained by agricultural informationization investigations and studies in Liaoning Province, and moreover proposes the effective solution is that a Digital integrated platform should be build in China rural community, which play two aspect of the function meanwhile the rural community management and information service, marking a feature of extreme interactivity, integrativity and comprehensive consistent, furthermore it should choose a specific informationization construction plan according to the different community characteristic together with the farmer and the rural community in view of establishing a reasonable effective development mechanism, realizing the fair and reasonable disposition and management to the information resource, ultimately realizing the sustainable development of the rural informationization.