Ensuring children's health is a universally supported goal of development and in this respect, malnutrition is considered as an important child health indicator. Malnutrition is also long recognized as a consequence of poverty and it has a direct relation with child mortality. Unfortunately, children in developing countries are vulnerable to malnutrition because of low dietary intakes, infectious diseases, lack of appropriate care, and inequitable distribution of food within the households. This study emphasizes that malnutrition and mortality among the tribal children far exceeds their share of population in rural areas. In Odisha (considered as a homeland of tribe), both chronic and acute under nutrition was less widespread at the time of NFHS-3. In this State the average family size is high among the low income families, which in turn has high negative impact on the nutritional status of these families. The study is basically an attempt to understand the extent of malnutrition and its impact on child development in Juang, a primitive tribe of Odisha. This has done with the following basic objectives: (i) to assess the status of malnutrition in children less than 3 years of age in the Juang tribe in kendujhar district of Orissa; (ii) to assess the level of Development in children less than 3 years of age in juang tribe and (iii) to determine the impact of malnutrition on children development in the Juang tribe.