This research was conducted in April 2017 by taking samples of sediment and macrozoobenthos from Estuary of Batang Arau River of Padang City, West Sumatera Province. The aim of the study was to analyze the content of organic sediment and macrozoobenthos abundance and the relationship of organic sediment with macrozoobenthos abundance. The method used was a survey method consisting of 4 stations…