Abstract:EGCG has many physiological activities such as anti-cancer and antibacterial activity. It is a functional ingredient of potential aerospace functional foods. The content of EGCG was determined by liquid chromatography. Seven kinds of macroporous adsorptive resins such as ADS-7, ADS-8, ADS-17, ADS-21, D101, NKA-II and NKA-9 were used to adsorb EGCG. Desorption purification experiments, including static adsorption and desorption experiments and dynamic adsorption and desorption experiments. The ADS-7 and NKA-II macroporous adsorptive resins have good adsorption and desorption properties for EGCG. The desorption solutions were 60% and 70% ethanol solutions respectively. The desorption volumes were 6BV and 5BV, respectively. The desorption rates were 88% and 92% for 168.15mg and 156.45mg, respectively. The content of EGCG in the enrichment obtained with NKA-II resin was increased from 44.2% to 67.9%, and the yield was 90%. For EGCG, there are differences in adsorption and desorption properties of different types of macroporous resins, which require screening and process optimization. Macroporous resins can achieve the separation and purification of EGCG, and have potential in industrial production applications.