The invention belongs to the technical field of intelligent medical construction and discloses a secure-communication-based intelligent medical system, comprising: an intelligent wearable device, a cellphone terminal user APP, a server, and a medical assistance module; the cellphone terminal user APP is connected with the intelligent wearable device; the server is connected with the cellphone terminal user APP; the medical assistance module is connected with the cellphone terminal user APP and the server. The secure-communication-based intelligent medical system is an integrated development system for intelligent medical applications developed based on cryptography; as more effective measures are taken, seeing a doctor is facilitated for a user, and the user can take assistance in time; medical and health data safety of the user is guaranteed, and user privacy is protected.