Banana is one of the most common and widely used food all over the universe from ancient time. In this work mainly the nutrition analysis of various commonly cultivated banana varieties in Kerala has been used such as Najalipoovan, Poovan, Etha, Palenkodan, Robesta, Chemkadali, Pachakadhali, Sundari and Kannan. The peel contain about 40% of weight of banana fruit it's nutrition analysis is been also done to analyse various contents of significance. Further there is chance of occurrence of nutrients in peel since banana fruit is rich in various nutrients. And the peel of banana ,a biomass just discarded into nature can thus be converted to various value added products like drugs, soaps, animal feed etc. It is been observed that these peel is source of various natural antioxidants, dietary fibre, crude fat and crude protein. On analysis Pachakadali fruit has highest moisture content and moisture content of peel is highest for Etha. Crude protein content of fruit and peel is highest for Kannan. Crude fibre content of fruit is highest for Kannan and crude protein content of peel is highest for Sundari. Ether extract in fruit and peel is highest for Kannan. Total ash content of fruit is highest for Kannan and ash content of peel is more for Pachakadali. Gross energy of fruit is highest in case of Najalipoovan fruit and gross energy of peel is highest for Robesta. On comparing these varieties on the basis of test result Kannan is the most superior variety on the basis of nutritional quality. Further on analysing test results it has been found that the peel has superior nutrient and moisture content. So from the analysis it is revealed that one of the most useful part of a banana is it's peel. By the above analysis one can easily understand importance of many varieties of banana and further detailed researches can extend the scope of study.