In order to solve the problem of stability on processing Prepared Yoghurt beverage with fiber, the best stabilizer was screened from 21 stabilizers by determining their precipitation rates. The results showed that the effects of multiple stabilizer on stability of the beverage was prominent, but the effect of every multiple stabilizer was different; the best stabilizer was DT-021, the best adding dose was 4 g/kg-5 g/kg, precipitation stability was 0.29 %, there is no sediment after stored for 300 days at room temperature.