Abstract:The fermented milk beverage was made from red raspberry and milk as the main raw materials.The redberry juice extraction and fermented milk beverage formula were studied by response surface method.The results showed that the optimal conditions for extracting red raspberry juice by enzyme treatment.The enzymatic hydrolysis temperature was 40℃，the enzyme dosage was 0.5%，and the enzymatic hydrolysis time was 4.5 h，the best formula of the red raspberry fermented milk beverage was that the amount of red raspberry juice added was 15%，and the fermented milk was added 30%.The amount of white granulated sugar added was 8%，and the pH was adjusted to 4.0.