The technology of extraction and clarification were studied by using orthogonal design with pueraria radix.The result show that the color can be better by adding 0.05%VC.The optimum extraction were pH 8.0,temperature 80℃,time 2h. The best enzyme hydrolysis conditions were the amount of enzyme 1.2mg/g pueraria radix, temperature 60℃,pH5.0,time 30min .The stability can be better by adding 0.15%CMC-Na.The flavonoid in the beverage were 0.1%.