Men with diabetes can usually have children, but it is recommended that they do so after their blood sugar has stabilized. Disorders of glucose metabolism in diabetic patients can lead to elevated blood glucose levels, and high blood glucose levels may cause some damage to the reproductive system, leading to abnormal male sexual function, and may also have an impact on the quality of spermatozoa. Therefore, men with diabetes are advised to use oral hypoglycemic drugs such as acarbose or insulin injections under the guidance of a doctor, along with dietary control and appropriate exercise, to stabilize blood glucose control before preparing for pregnancy. Men who have been diagnosed with diabetes and are planning to conceive need to cooperate with their doctors to standardize their treatment.