Disclosed herein are a fermented culture of green tea residues and the preparation process thereof. Also disclosed is that the fermented culture of green tea residues can be used in improving meat quality and meat flavor of a pig.本發明揭示一種綠茶渣的發酵培養物暨其製備方法。本發明亦揭示該綠茶渣的發酵培養物可被用來改善一豬隻的肉品質與肉風味。