The disclosure of infectious disease information involves social stability and public welfare. As a front-line exposure group，medical personnel have the obligation to inform patients while also having the right to disclose the relevant information about the condition to a specific range of uninformed persons. However，in the process of diagnosis and treatment，medical personnel also have the mission of protecting patients’privacy and respecting their personalities. How to protect patient’s privacy and safety while preventing and treating infectious diseases orderly remains to be pondered. This article analyzes the conflict between the freedom of speech of medical personnel and the privacy of patients，and seeks to reconcile the contradiction between the basic value construction and the legal protection and derogation of medical staff and patients.