This research was conducted in May 2017 in Batu Asahan Coastal Waters, District IV Jurai, Pesisir Selatan Regency, West Sumatera Province. This study aims to determine the distribution of Birgus sp in Batu Asahan Beach, District IV Jurai. The method was used survey method with research location divided into three intertidal zone (upper, lower and middle) waters, consist of 3 station perpendicul…