Study on resource use efficiency in maize cultivation was conducted in Tejwapur block of Bahraich district of Uttar Pradesh. Primary data was collected from 100 respondents including three categories i.e. marginal, small and medium sized sample farms. Purposive cum random sampling technique was applied to draw the sample of respondents. Personal interview method of data collection, tabular and functional analysis was applied to bring the study at final stage. Result of study revealed that maize production shows the stage of decreasing return to scale and MVP indicate further scope to invest on four factors included in the study to achieve the position of optimum resource combination and maximization of the profit.