Abstract:The water quality in Shishi inshore was monitored from January to December in 2015. The physicochemical parameters including pH, dissolved oxygen, chemical oxygen demand, inorganic nitrogen, active phosphate and petroleum. The water quality was analyzed and evaluated by using single factor index method and eutrophication level evaluation method. The results showed that pH, dissolved oxygen, chemical oxygen demand of the water quality conformed to the corresponding environmental quality of marine functional zoning requirements, but inorganic nitrogen, phosphate and petroleum of water quality exceeded the standard in 2015.