The effect of Ultrasound (UTS) pretreatment have been studied on the anaerobic digestion of vegetable waste using biochemical methane potential (BMPs) assays. The main feature of this research work has been to assess the changes in the cumulative biogas production resulting from AD of pre-treated and untreated samples of VW for the different sonication times (10,40, and 60 minutes) and ultrasonic specific energy applied in the assays. Volatile solids, total solids, volatile fatty acids, chemical oxygen, soluble chemcial oxygen demand and PHD were monitored using standards methods. (APHA,1998).