Artificial insemination is the placement of semen into the female reproductive tract through non-coital means. According to the source of sperm, it is divided into artificial insemination with husband’s sperm and artificial insemination with donor’s sperm. The indications for husband sperm artificial insemination are as follows: 1. male factors 1. male oligospermia, weak sperm, abnormal semen liquefaction; 2. existence of anatomical abnormalities that prevent sperm from entering the vagina during normal sexual intercourse, such as severe urethral hypospadias, retrograde ejaculation; 3. psychoneurological factors, such as impotence, premature ejaculation, ejaculation; 4. male immunoinfertility. Female factors 1, cervical factors, such as abnormal cervical mucus, chronic cervicitis, cervical surgery, cervical stenosis; 2, the presence of factors that impede the operation of spermatozoa in the reproductive tract, such as vaginal deformities, uterine hyperflexion, vaginal spasm during sexual intercourse; 3, immune infertility (positive anti-sperm antibodies, abnormal sexual intercourse test); 3, unexplained infertility 1, the female has a regular ovulation cycle; 2, the male twice Semen analysis is normal; 3. Laparoscopic examination of the pelvis is normal, without tubal adhesion and obstruction.