With double red rose as the object, modern precision instrument analysis technology (GC, GC-MS, IC, HPLC, HPLC-MS, etc.) and raw material-oriented, multi-dimensional research on functional components and typical flavor substances of rose was carried out to achieve quality analysis and control of rose raw materials, and modern fermentation technology was used as the means. By adopting functional microbial screening and application technology based on rose characteristics and integrating research on flavor-oriented plant-based fermentation mechanism, the scientific and technological capabilities of deep-processed rose products are realized, and the differentiation and high-end of deep-processed products are achieved.