Abstract: Switched Surfactants are mainly used to treat hydrophobic organic pollutants in soil and groundwater systems. Polycyclic aromatic hydrocarbons (PAHs) are the focus of research. Therefore, they have aroused considerable interest in surfactant-enhanced remediation of organic pollutants such as PAHs in soil and groundwater systems. Here, the mechanisms of reversible PAHs solubilization were critically reviewed for three types of switchable surfactants based on changes in the micellar morphology of the surfactants. Differences in the microscopic control of PAHs solubilization were explored by comparing the physicochemical indicators of surface activity for optical, gas (CO₂/N₂), and redox switchable surfactants. The main advantages and disadvantages of these switchable surfactants in practical applications were also summarized. The review revealed that pH, inorganic ions, and soil minerals may affect the practical application of switchable surfactants, and future studies should explore the effects of these multivariate factors on the PAH remediation mechanisms. In the future, it is necessary to explore the influence mechanism of dynamic coupling of various environmental factors on the solubilization of polycyclic aromatic hydrocarbons by switchable surfactants through a certain scale of field experiments, clarify the relationship between different regulation methods and separation efficiency under dynamic coupling of environmental factors. This review may also help select the appropriate surfactants for different applications.