Since test tube baby was born for the first time at 1985 in Korea, Korean infertility treatment techniques have been rapidly developed. To date, approximately 70 domestic infertility centers, including university hospital and specialized clinic, systematically connected to provide a comprehensive and organized treatment system for male infertility as well as female infertility, In particular, Korean infertility treatment techniques have great outstanding achievements in the field of test tube baby (IVF; In vitro fertilization), ICSI (intracytoplasmic sperm injection) for treating azoospermia, and cryopreservation of sperm and eggs. These clinical experiences and technical excellence have been previously recognized by all over the world through presentation in the international society meetings, such as ASRM, ESHRE, and IFFS. Recently, the development of in vitro maturation (IVM)-IVF) and oocyte cryopreservation techniques have contributed to upgrading our infertility treatment levels to a leading status. With specialists who majored reproductive endocrinolgy, high-tech medical equipments and technologies, appropriate treatment according to the causes of infertility through scientific evaluation, Korean infertility centers provides high-quality medical service.