This work is an intelligent cloud medical platform based on knowledge map. Today, with the popularity of mobile communication, we hope that medical treatment and diagnosis can be solved efficiently through the network platform like shopping. However, the traditional online medical platform relies too much on the participation of doctors, and the initial diagnosis of many diseases will waste the resources of hospitals and patients. Therefore, this App has developed an original voice intelligent inquiry technology, based on knowledge map, covering 6000 kinds of symptoms, more than 8000 diseases and 4000 kinds of drugs, and can diagnose most common diseases through voice input. As an integrated medical platform, our App also integrates functions such as one-key registration, question and answer forum, online consultation, outpatient appointment, online drug purchase, etc., which can provide users with an efficient way of seeing a doctor, consulting and communicating.