The internet and medical platform plays an important role increasingly in the process of seeking medical treatment, but the problem, "three long and one short", has not been effectively solved in most of the major hospitals. In this paper, we propose a public platform based on WeChat, which plans the treatment routes of all patients overall and reasonably. Firstly, to improve the traditional medical treatment process, the optimal clinic route system is combined with it, then we propose two different optimal clinic route schemes with the shortest treatment time solved by retrospective method. We carried out simulation experiments on the optimal waiting algorithm. The results show that compared with the worst case, the designed algorithm greatly saves the time and distance of the consultation, which proves that the algorithm can reasonably and effectively plan the treatment route and improve the medical service level.