Aim and Background: Given the importance of the intertidal benthic communities as well as increasing urban and industrial facilities on the coast, this study was carried out to obtain basic information required in the control of the coast, environmental.

Material and Methods: Sampling was conducted in Bandar e Abbas, Bandar e Jask and Bandar e Lengeh by a powerboat in 2011 seasonally.

Conclusion: In this study Polycheata, Oligocheata, Crastacea, Mollusca, Nematoda, Nemerteana, Foraminiferida, Ophiuroidea and others were carried out. Results showed that Crustacea had the maximum density with amount of 333950 indm^-2.

Discussion: Any changes to coastal ecosystems and intertidal zone will result in a change in the factors that govern the benthic communities as indicators of environmental changes as well as the dynamics of the visible world, evaluating and calculating.

Results: Due to Macrobenthos density and biodiversity indicators, it seems that a significant change in the density and biodiversity after algal bloom did not exist therefore; it had been before on the coast of Hormozgan.