Abstract: As a new type of water treatment process, magnetic coagulation technology has the function of efficiently separating and purifying water. Therefore, it has aroused wide attention from all walks of life and its status in the field of water treatment is increasingly prominent. In the process of water treatment, adopting magnetic coagulation method can not only shorten the settlement and flocculation time, but also improve the coagulation effect. Based on this, this paper has conducted an in-depth discussion and analysis of the research progress of magnetic coagulation technology in water treatment, in order to provide reference for related applications.