Due to the microwave thermogenic effect, non-thermogenic effect, induced catalytic effect and other mechanism of action of the special characteristics of the chemical field, especially in the field of organic synthesis has brought a great impact. Microwave application in organic synthesis reaction, reaction speed than the conventional way to accelerate ten to thousands of times. And it can synthesize substances that are difficult to synthesize by conventional methods. So far, the research has been studied and achieved results in the following: Diels-Alder cycloaddition reaction, rearrangement reaction, esterification reaction, Pekin reaction, alkylation, oxidation, substitution, condensation, addition and polymerization and so on. They are widely used in the fields of materials, pharmaceuticals, chemicals and related teaching and research.