Abstract: Magnetic field is a field with special energies which is one of the physical factors affecting the physiological processes of living organisms. All organisms have their own magnetic fields, and the external magnetic field can have an impact on organism organization and metabolic processes. The magnetic field affects the whole process of organisms from growth to decay through the change of biological enzymes, an important substances in the body of life. The influence of magnetic field on microbes are more complex, and the magnetic field will produce different degrees of promotion or inhibition effect on microbes. Meanwhile, the application of magnetic field may have effects on cell structure, gene expression, cell membrane permeability, etc. In recent years, the role of magnetic field-induced biological magnetic effect in the treatment of environmental pollution such as water, soil and solid waste has attracted general attention. The effects of applied magnetic field on biological enzyme activity, microbial properties and biological cells were systematically reviewed. Based on this, the current researches of microbial magnetic effect in wastewater, soil environment and solid waste treatment were systematically summarized, and the application prospects of magnetic field biological effect in the environmental field were put forward, in order to provide a theoretical basis for biological magnetic effect to strengthen environmental remediation.