Abstract: The berries of Vitis vinifera cv. Cabernet Sauvignon was used as material to investigate the correlation between the content of grape total phenolic （TP）， total flavinoids （TF）， total flavan\|3\|ol （TFO）， total anthocyanim （Tacy）， resveratrol （Res） and the related enzymes activities with the aim to provide the theoretical basis for metabolism of phenolic compounds. The result showed that there was significantly positive correlation between the content of TP and Res. Simultaneously， a significantly positive correlation was observed between the content of Res and PAL activity. In addition， there were interactions of reciprocal inhibition between TFO and Res or Tacy， respectively. Therefore， PAL was confirmed as a key enzyme in the pathway of resveratrol metabolism regulation， and TFO might be involved in the conversion between Res and Tacy.

Key words: grape, Cabernet Sauvignon, phenolic compound, enzyme activity