1. Primitive neuroectodermal tumors are rare, highly malignant tumors that originate from naïve neuroepithelial tissue and have the ability to differentiate in the direction of neural progenitors, glia and mesenchyme. The new WHO (2000) classification is attributed to embryonal tumors of neuroepithelial tissue, with a histological grade of 4 and highly malignant biological behavior. It can occur at all ages, mostly in young people, more in men than women, and has a poor prognosis because of the high degree of malignancy and the lack of perfect treatment. Treatment is based on surgery as the main comprehensive treatment program, which is more sensitive to chemotherapy and radiotherapy, and after surgery, adjuvant chemotherapy is often used, commonly used chemotherapy program for CAV and high-dose cisplatin, etc. In recent years, isocyclophosphamide and other drugs have also achieved good efficacy in the treatment of isocyclophosphamide, but most of the patients tend to be subclinical metastasis, due to the high degree of malignant, and soon that is to be widespread systemic metastasis, and prognosis is very poor. Therefore, early detection, early diagnosis and early treatment should be advocated, and constantly improve the chemotherapy program is an important measure to improve the survival rate. 2. During the chemotherapy period, according to the characteristics of chemotherapy drugs, Blood Sheng Tang, which mainly strengthens the spleen and benefits the kidneys, can be given to the treatment, which can play the role of reducing the toxicity and increasing the effect in cooperation with chemotherapy drugs.