In order to further strengthen the diagnosis of tumor diseases and rational drug use, deepen the learning of new knowledge and new progress of malignant tumor radiotherapy, surgical treatment, immunotherapy, targeted therapy, tumor nutrition, etc., to help clinicians improve the level of clinical practice and better serve patients. On January 17, 2024, the first session of the Cancer Series Conference was successfully held online. The meeting was hosted by Chengdu High-tech Medical Association, with more than 100 online participants. The conference invited well-known experts in the field of cancer from inside and outside the province to make special academic reports, and discussed and exchanged classic cases and cutting-edge technologies of related professions. The content involves a wide range, is closer to the clinic, has a strong advancement, practicality and controllability, is worth the majority of primary doctors to learn.