In order to improve the level of diagnosis and treatment of infectious diseases and tumor diseases by doctors in western China, the "Shaanxi Oncology Grassroots Online Conference" sponsored by Chengdu High-tech Medical Association was held online on January 29, 2024, with more than 200 online participants. The conference invited well-known experts from the western region. This meeting promoted the exchange of experts in the western region. Through lectures and discussion and analysis of infection cases in relevant departments, a multi-dimensional and comprehensive thinking mode of infection diagnosis and treatment was established, hoping to help clinicians improve clinical practice, better serve patients, and promote the development of health career.