The pepper species (Capsicum baccatum) have high fruit variability in terms of colour, shape, size and intensity of spicing, with fruit quality depending on the amount of water used during the development phases. In this sense, the objective of this study was to evaluate the yield of yellow finger pepper cultivated in a greenhouse environment under drip irrigation system. The experiment was conducted in a greenhouse located in the experimental area of the Goiano Federal Institute - Campus Ceres, Goias – Brazil, from July 2016 to February 2017. A completely randomized design was used, with four irrigation levels (50, 75, 100 and 125% of Crop evapotranspiration (CET)) and 5 replications. The traits evaluated were plant height; diameter of stem and cup; fresh weight and root dry weight; number of fruit; mass, diameter and length of the fruit; amount of seeds per fruit; pericarp thickness; average productivity; yield per plant and fruit length/diameter ratio. Data were submitted to variance analysis (F Test), at 5% significance level and in the characteristics that presented significance, regression. Differentiation of the treatments (p < 0.05) provided linear growth in the characteristics of the yellow finger pepper, with an increase in yield according to the increase of the water replenishment levels.