In order to strengthen the academic exchanges between medical institutions at all levels and improve the standard diagnosis and treatment of blood tumors by clinicians. The "Multidisciplinary Seminar on Hematology and Oncology" sponsored by Chengdu High-tech Medical Association was successfully held in Chengdu on March 20, 2024, with more than 100 participants. This meeting hired experts from and outside the province in related fields of blood oncology to teach, to conduct in-depth discussions on the clinical practice of blood diseases and the whole-process management of blood diseases involved in multidisciplinary fields, and to sum up the clinical practice experience and technology of multidisciplinary diagnosis and treatment, which is closer to the clinical practice, has strong advancement, practicability and controllability, and is worthy of the majority of grassroots doctors to learn