It was proposed that the substance of Kyungrak is a new anatomic-histological system in the living body and entirely different either from the nervous system or blood and lyphatic vessels. This system is covering the whole body, regulating and coordinating the biological processes that lie at the bottom of the vital activity. One of the substance of Kyungrak is acublast. The aim of this study was to isolate and culture the acublast from human placenta or blood of umbilical cord. It was found that particular cell organism isolate from placenta and cultured with RPMI 1640 contaning 10% FBS and hormones was grown for four weeks. Although this organism was different from blood cells morphologically, biochemical study of the organism is required to identify as the acublast.