ABSTRACT Mangroves are very productive forests, have high diversity and has an important role in the ecosystem. This study aims to identify and analyze the diversity of mangrove species in Api-Api Village, Bengkalis Regency. The method used is survey method. Determination of the plots by purposive sampling with a plot size of 10 m x 10 m for trees and 5 m x 5 m for sapling. The research result…