Abstract:Microplastics (MPs) are new pollutants with small particle size, wide source, large specific surface area and stable chemical property. They can enter the soil environment in various ways, destroying soil structure and affecting soil ecosystems such as plants and microorganisms. Therefore, it is necessary to analyze the sources of soil MPs, detect their type and abundance, and assess the degree of soil MP pollution to ensure the safety of soil environment. Based on the introduction of the main sources of soil MPs, this paper summarizes the separation, decontamination methods and detection techniques of soil MPs commonly used at present, and compares them in terms of the detection accuracy, the time required and the complexity of the processing technology. At the same time, the characteristics of soil MPs are summarized and analyzed, and the future research direction is expected.