In recent years, the infection of nontuberculous mycobacterium (NTM) has been increasing rapidly, which captivates widespread attention. The infection rate of NTM in kidney transplant recipients is more significantly elevated due to the impact of immunosuppressive drugs and other factors. However, due to the lack of sufficient research evidence, relevant guidelines for the diagnosis and treatment of NTM after kidney transplantation are still lacking. To further standardize the diagnosis and treatment of NTM disease in kidney transplant recipients, and deepen medical practitioners' understanding and diagnosis and treatment of NTM disease in organ transplantation in China, Branch of Organ Transplantation of Chinese Medical Association organized relevant experts to formulate this guideline by referring to the latest edition of “An official ATS/IDSA statement: diagnosis, treatment, and prevention of nontuberculous mycobacterial diseases”, “Expert Consensus on the Diagnosis and Treatment of Nontuberculous Mycobacterial Disease”, and “Technical Specification for Clinical Diagnosis and Treatment of Nontuberculous Mycobacteria in Organ Transplant Recipients (2019 Edition) ”, and considering the characteristics of kidney transplant recipients.