Abstract: Gaocha health tea, with its unique health efficacy, tastes bitter and this bitterness can be reduced by adding such excipients as green tea, chrysanthemum and liquorice into the tea. The best proportion of Gaocha health tea were determined by two major factors, flavor and aroma, with Gaocha: green tea: chrysanthemum: liquorice as1.64 g:0.54 g:0.27 g: 0.27 g. Antioxidant activity of Gaocha health tea was confirmed through the comparative analysis of its scavenging effect on the free radicals ABTS and DPPH. Gaocha’s ability to remove these two free radicals was enhanced with the increase of sample concentration (0-25μg/mL). Alcohol extracts in Gaocha, at 25μg/mL, reached its strongest ability, up to 92.24%, of removing ABTS. As to remove DPPH, the ability of alcohol extracts and water extracts in the tea came respectively to 86.22% and 84.29%. While in high concentration (25 to 800μg/mL), their ability to remove ABTS and DPPH no longer developed with the increase of sample concentration.