The article introduces the new technology that distilling the edibl e protein from the rice dregs combine with both of methods, cellulose hydrolysis and acid-washing disposal . The optimal temperature of cellulase hydrolysis is 50℃, and pH is 4.8~5.0, in addition, the dosage of cellulose is about 20u/g~40u/g, and the hydrolysable time of rice dregs is 30min~60min. According as th e research, the distilling combined with secondary acid-washing and cellulase hydrolysis can be proved ex cel to the acid-washing disposal and work perfectly at the t...