properties. Mango and pomegranate peels are the major by-products of mango and pomegranate juice industry they are a good source of bioactive compounds such as polyphenols, carotenoids, vitamins, enzymes and dietary fibers which play an important role in prevention of diseases.อnoticed that the pomegranate peel powder (PPP) and whey powder (WP) are a good source of total phenolic and had a great free radical scavenging activity and concluded that, the mixture of pomegranate peel powder and whey powder could be used as natural antioxidants to enhance the antioxidant properties of functional food. Also,stated that, it can be use mango peels as a good source of pectin and polyphenolics in food industries. The present study was undertaken to evaluate the influence of addition mango and pomegranate peels powder with or without whey powder in yoghurt manufacture on the chemical composition, survival of lactic acid bacteria, functional properties and sensory quality of yoghurt.