Adsorption is one of the main mechanisms of soil pollution by volatile chlorinated hydrocarbons (VCHs). The adsorption behavior of VCHs in soil not only directly affects the concentration and distribution of VCHs in soil, but also affects the migration and transformation of VCHs in soil, and has a significant impact on the remediation capacity of contaminated sites. Based on the investigation of the adsorption-desorption behavior of VCHs in soil, the main factors affecting the adsorption of VCHs in soil were summarized, and the investigation and control of soil pollution in urban areas provided theoretical reference.