Assessment of the Impact of socio-economical factors on packed lunch is not only serves as a means to evaluate the health and nutritional status of children, but also provides an indirect measure of the quality of life of the entire population. The respondents of the study were 200 students grade 1-8 in 5 private schools of Muzaffarpur district of Bihar. Nutrients of lunch box were calculated through food composition table from the standard of ICMR & NIN (2010). According to the data healthy lunch boxes were found more in male respondents (70.10 percent). More than half (53.5 percent) of the female children bring unhealthy lunch box in the school. Near about half (46.39 percent) of the general students were carry healthy lunch boxes. More than half of the children were carry unhealthy lunch. Children with healthy lunch boxes were found in 47.42 percent in Hindu, 32.99 percent in Muslim and 12.37 percent in Sikh. Significance relationship were observed between nutritional value of lunch of the children with gender, caste, Mother’s education, size of family, types of family, and economical condition.