Abstract The present study aimed at the determining the storage slability of the yield and the physico-chemical characteristics of mozzarella cheese prepared from cow milk, goat milk and a mixture of cow and goat milk The cheeses were subjected to the analyses during different storage periods(first 15 day and 30 h day after manufacturing) day throughout the Mozarella cheese contained appreciable amounts of minerlas. calenum. sodium, phosphorus and potassium(17 73 26 13 storage period. The pH ranged(4 93 5 21. 4.S3 513 and 4 82-5 23), while the contents of protein d range 18.86-26.53 and 17 82 26 93) and the fal content ranged(15.07-24 87. 16 53 21.17 and 14 03 24 12)% at first day 15th day and 30th day of storage period, respectively Most of the most ol chemical components of mozarella cheese were not affected by storage. These components were significantly affected by milk types The results also indicated that mixture milk mozzarella cheese(MMMC) had higher cheese yield which differe significantly(p50.05) from other cheese types throughout storage period. The study recommended encouraging dairy industry in Sudan to use goat's milk or a mixture of goat's and cow's milk in production of mozarella che Keywords Cow Milk, Goat Milk. Chemical Analysis. Minerals