Japan Society of Ova Research (JSOR) is the certifying boards for embryologists engaged in assisted reproductive technology (ART). JSOR has certified 1,006 Embryologists of Assisted reproductive technology from 2002 until now and 14 Senior embryologists of assisted reproductive technology from 2007 until now. We analyzed certified embryologists in order to know the present status of embryologist. About certified embryologists, a woman occupied 79.8%. The range of 20–29 years old was the most (71.3%). By analysis of last educational background, 63.7% of them was a graduate from a university / a graduate school. The embryologist who acquired a degree was 24.3%. One to two years of the engagement period in the ART laboratory was the most (48.8%). The most common type of ART facility where embryologists engaged in is a private clinic (69.1%). Fourteen senior embryologists of ART were certified in collaboration with Japan society of reproductive medicine. Currently, embryologist is widely recognized as an occupation. A public qualification system will be needed for the development of embryologist.