Method for enzymatic secondary processing on tea

The invention discloses a method for enzymatic secondary processing on tea. The method comprises the following steps of 1, weighing a proper amount of dry tea, 2, uniformly spraying a tannase solution having a concentration of 0.3-1.5U/mL on the dry tea, wherein a material-liquid ratio of the tannase solution to the dry tea is 1: 9-1: 1 and the tannase solution is prepared by a solid state fermentation method, 3, carrying out rolling mixing at a temperature of 30-60 DEG C for 0.5-2h so that full enzymolysis on the tea is realized by tannase, and 4, drying the tea by a two-step drying method. The two-step drying method comprises the following steps of drying the tea at a temperature of 120 DEG C and then drying the tea at a temperature of 100 DEG C. The method can obviously promote conversion of beneficial components in the tea and retain active substances of the tea thereby guaranteeing a tea local flavor. The method can improve quality and an additional value of a low-grade tea product and has an important effect of improving tea economic benefits.