Post-transplant malignancies have become the second leading cause of mortality among kidney transplant(KT)recipients in many countries,significantly affecting long-term survival and quality-of-life.This issue demands heightened clinical awareness.The risk of developing tumors after KT is approximately two to three folds higher than that of general population matched by age and gender,primarily due to viral and immune-related factors.Once tumors progress,the prognosis is often poor,particularly in cases of melanoma,kidney cell carcinoma and post-transplant lymphoproliferative disorders.To further standardize the managements of non-urinary tract tumors after KT,Branch of Organ Transplantation,Chinese Medical Association initiated the drafting of the Chinese guideline for clinical diagnosis and treatment of non-urinary tract tumors in kidney transplant recipients(2023 edition).Compiled by senior experts in organ transplantation,this guideline was based upon existing clinical guidelines,systematic reviews,case studies and expert consensus.It summarized the latest advances in the diagnosis and treatment of non-urinary tract tumors in KT recipients,both domestically and internationally,with an objective goal of providing valuable references for managing non-urinary tract tumors in KT recipients.