Abstract: The Eastern China coastal belt is a marginal zone connecting sea and continent, and is a multifunctional natural complex with abundant natural resources and high development potential. But natural environment is complicated and changable in the coastal belt, and ecoenvironment is also very weak. Many departments and subjects are involved in resources exploitation in the castal belt. While environmental engineering geological problems(EEGP) have arisen in the course of resources exploitation, so it is very important to strengthen the study of environmental engineering geology(EEG) in the castal belt. Main EEGP in the course of resource exploitation in the coastal belt are analysed, BP model of Neural net is used in evaluation and zoning of engineering geological environmental quality in the coastal belt and adjacent areas. Based on this research, a sustainable development strategy for the coastal belt of eastern China are discussed in this paper.