On September 21-22, 2019, the "2019 Radiotherapy Physicians Branch of Guangdong Medical Physicians Association and the 2nd Guangdong-Hong Kong-Macao Greater Bay Area Radiation Oncology Physicians Alliance Annual Meeting", sponsored by Radiotherapy Physicians Branch of Guangdong Medical Physicians Association and jointly hosted by Guangdong Sanjiu Brain Hospital and Peking University Shenzhen Hospital, was held in Shenzhen. The conference aims to promote the clinical academic research of radiation oncology in China, and promote the exchange of doctors in Guangdong-Hong Kong-Macao Greater Bay Area, especially the training and progress of young radiotherapy doctors. This conference focused on two cutting-edge hot topics: "Frontier of Radiotherapy Progress of Lung Cancer and Standardized Multidisciplinary Diagnosis and Treatment Strategies" and "Research Progress of Precise Tumor Treatment and Radiation Protection". Through keynote speeches, conference reports, MDT medical record discussions, young physician training courses and other forms, a gluttonous academic feast was created.