To provides guidance to the research and the application of chemical type in Cinnamomum plants on some remaining problems. Analyzed of concept of the chemical type and which compound can come into being chemical types

and discuss the mechanism and characteristic of the chemical type formation in Cinnamomum plants

and brought forward in the future research direction of chemical type in Cinnamomum plants. Chemical type is the all-pervading phenomena in Cinnamomum plants. Chemical components of leaf oil from reproductive progenies of Cinnamomum plants are different. The formation of chemical type is the result of the interaction between environment and genes

and related of developmental stages. Different chemical types have different applications in pharmaceutical

chemical and spices industries. In the future the chemical type in Cinnamomum plants should be studied from the following aspects:① Studying the formation mechanism of the chemical type in Cinnamomum plants. ② Studying the affect factor of the formation of different chemical types. ③ Studying genes of key enzyme different chemical types

and establishing transgenic systems. ④ The good breeding of different chemical types. ⑤ The Identification of the different chemical types seeds.