Lymphoma is the most common hematologic tumor. It is derived from lymphoid tissue, including Hodgkin's lymphoma(HL) and non Hodgkin's lymphoma(NHL). The treatment of lymphoma includes chemotherapy, radiotherapy, stem cell transplantation, targeted therapy and surgery etc. With the progress of treatment, the survival rate of lymphoma patients has been improved. But the 5 year survival rate of lymphoma in China is shorter than that in United States. The reason is that there is still a gap between China and the United States in disease screening, diagnosis and treatment.