Erectile dysfunction refers to the inability of the penis to achieve and maintain an erection sufficient for satisfactory sexual intercourse, the incidence of which accounts for 10% of men and is divided into primary and secondary. For any one patient, there may be a variety of factors at play at a given moment, and the psychological factors affecting erection vary depending on the environment, experience, and state of mind of each individual. Organic factors: diseases of the genitals themselves, endocrine diseases, neuropsychiatric diseases, vascular diseases, trauma and surgery. Currently, oral sildenafil, intracavernosal injection, and vacuum narrowing devices have gradually replaced penile prosthesis and revascularization procedures. Occasional erectile dysfunction does not require stress, and most of them can be restored to normal by eliminating adverse stimuli and psychotherapy as much as possible. Most patients with combined personality disorders require psychological adjustment, while oral medications can be taken to enhance sexual function and promote the disappearance of psychological factors. If it is organic, active treatment of the primary disease or surgical intervention is required.