Abstract: As China enters the era of organ donation after the citizen's death, the organ donation cases with potential malignant tumor history increase gradually. Guide to the Quality and Safety of Organs for Transplantation (6th Edition) by European Committee was translated into Chinese in 2019. This article interprets Chapter 9 of the guideline "Risk of Malignant Tumor Transmission" to assist organ donation coordinator and transplant team in screening donors at risk of malignant tumor transmission in our country and to reduce the risk of donor-derived tumor transmission.