Aromatic plants have a variety of species and a wide distribution of resources,and have the functions of aroma,beautifying the environment,ornamental,and medicine.It is very important to study the development status of aromatic plant breeding in depth for the future development direction.The advantages of molecular breeding technology in improving plant varieties are incomparable with traditional breeding technology.It is an ef-fective solution to improve efficiency to use it in the breeding research of aromatic plants.This review was based on the research progress at home and abroad,from the synthetic and metabolic pathway of aromatic substances in aromatic plants;the application of molecular breeding in the practice of aromatic plant breeding was discussed in many aspects of the study of aromatic plants.In this paperThe related regulatory genes of aroma synthesis pathway in the research of genetic engineering breeding of aromatic plants were summarized.At last,more genes involved in the regulation of floral fragrance in the future were discussed,which provided a theoretical basis for further re-search on molecular breeding of aromatic plants.