The reactor is the equipment to realize the reaction process, which is widely used in chemical industry, oil refining, metallurgy and other light industry sectors. Chemical reaction engineering takes the reaction process in industrial reactors as the research object, and establishes the reactor mathematical model by using mathematical model method to study the influence of the reactor transfer process on the chemical reaction, as well as the dynamic characteristics of the reactor and the sensitivity of the reactor parameters, so as to realize the reliable design and operation control of industrial reactors.