The Around Bohai Region is the third pole of economic jack-up in China.The Bohai Sea makes tremendous contribution to the costal region and the national economical development.However,with the population growth and the rapid development of industry and agriculture in recent years,the pollution in Bohai Sea becomes more and more serious.The long-term accumulation of pollutants results in a sharp deterioration in the environmental quality of the Bohai Sea.On the basis of the large number of literatures and the field investigation on the Bohai Sea pollution,this paper discussed the present pollution situation of the Bohai Sea,such as serious eutrophication,the pollution of heavy mental,petroleum pollution and the secondary pollution formed by sediments and so on.It was pointed out that the pollution of Bohai nearshore area was serious and the ecology development had been affected.The causes of pollution and hazards were analyzed,which included the immission of land pollutants,exploitation of oil and gas resources and inperfect management system.From the view point of sustainable development,the relevant countermeasures for Bohai environmental protection were put forward,which included administering the Bohai legally,establishing concise and efficient management mechanism,applying new technologies and new measures,reinforcing the forecast and so on.