The development of“Internet + Healthcare”in recent years has led to the development of the healthcare industry while breaking through the regional restrictions of traditional medical treatment to provide convenience for patients. Aiming to regulate online diagnosis and treatment，the current regulation stipulated that online diagnosis and treatment cannot be applied to“primary diagnosis”patients，while the violations of relevant regulations and breach of medical service contract require bearing civil liability and administrative responsibility. However，there are some problems with online consultation in practice，such as the ambiguous boundary between medical consultation and diagnosis and treatment services，the lack of specific standards for primary diagnosis review，and the weak practical ability of current norms. In addition，illegal primary diagnosis on the internet also disrupts drug administration. Based on the issues above，this essay puts forward the following corresponding suggestions and measures. It is necessary to strictly distinguish between medical consultation and diagnosis or treatment activities，refine the current regulations for the primary diagnosis，and improve drug management systems related to internet diagnosis and treatment， improving the current legal system to regulate online diagnosis and treatment activities strictly.