The kidney and sexual function have a close relationship, can be discussed from the following three aspects: 1, from the anatomical direction, the kidney is an important organ of the genitourinary system, the kidney and sexual function have a direct relationship; 2, the kidney has the role of the main bone and marrow, that is, the kidney has an endocrine role, the production of hormonal substances need kidney Yang warm fumigation, kidney essence add supplement, in the reproductive system, sexual function activities, the kidney has a very important role; 3, Chinese medicine believes that the kidney is the root of the first day, the kidney is the main bone and marrow, the main reproduction, in these functions also highlights the special nature and importance of the kidney and sexual function activities. Whether from the clinical or from daily life, kidney supplementation has certain benefits for sexual function, but blind kidney supplementation should draw more attention, which can lead to disease or induce the occurrence of disease.