Abstract: Experimental and theoretical studies about mass transfer enhancement under electric field，magnetic field and electromagnetic field are reviewed，and the differences between the three ways of mass transfer enhancement are analyzed. The application of mass transfer enhancement under electromagnetic field is more extensive; the mass transfer enhancement mechanism can be explained as：the electromagnetic field changes the molecule’s mobility，reduces the activation energy of mass transfer process，and consequently，enhances the diffusion process. In the end，the research progress of the microwave non-thermal effect is presented. The results show that some chemical reaction，ceramic sintering and extraction process are enhanced by the microwave non-thermal effect.