The paper introduces the structural design of outreach platform in the hospital including logic and network architecture. It elaborates on the security strategy of the platform in several aspects such as separation between intranet and extranet, data association, data transmission, auxiliary strategy and so forth.It discusses the preparation and implementation of platform building from network environment and hardware equipment and the effect of platform, points out that the platform can facilitate the information sharing between hospital and patients, improve medical efficiency and service quality as well as optimize the process to seek medical advices.