This study aimed to determine the total amount of flavonoids and antioxidant activity of sea cucumber (Holothuriascabra)meat flour. The method used was the experimental method, with Completely Randomized Design (CRD). The treatments used were different concentrations of ethanol consisting of 3 levels: P1 (65%), P2 (70%) and P3 (75%). The results showed that total flavonoid using 65%, 70%, and 7…