Abstract:Due to the changes of living habits and diet structure, the number of obese people in the world is increasing gradually, and the proportion of obese people in developing countries is also increasing greatly. Obese people have unbalanced energy intake, excessive obesity accumulation, interfering the normal metabolism of human body, and causing cardiovascular diseases and metabolic syndrome. And the obesity can cause systemic and local inflammatory response, excessive oxidative stress and apoptosis, and damage the internal environment of spermatogenesis and maturation by affecting male reproductive endocrine regulation, resulting in male sexual dysfunction, decreased sperm quality and fertility.