Abstract: Pitaya,abudant in nutrition,having certain health care function,is a good resource for food industry. This paper discussed the processing technology of fruit vinegar pitaya as the raw material. The results showed that,at 25℃ of alcohol zymolysis,14% percentage of sugar,initial pH4.4,we can get the largest amount of alcohol production after 11 days. And at 30 ℃ of acetic acid zymolysis,we can get pitaya vinegar with brown color and special gentle taste after 10 days.

Key words: pitaya, alcohol zymolysis, acetic acid zymolysis, processing technology