Abstract: Through a systematic analysis of the engineering characteristics of oilfield development and construction projects, this paper discusses the main production and discharge nodes in the exploration and construction process of onshore oilfields. It analyzes and evaluates the nature and degree of soil environmental impacts that may occur during the construction, operation, and retirement periods of oilfield development projects. The paper also studies the key and difficult points of soil environmental impact assessment of onshore oilfield development projects after the implementation of the new guidelines. It points out that the focus of soil environmental impact assessment of oilfield development and construction projects should be on soil environmental impact identification, soil environmental quality status evaluation, soil environmental impact prediction and soil environmental protection measures.

Key words: onshore oilfield, development and construction, environmental impact assessment, soil