The objective of this study was to evaluate the impact of postharvest treatment with moringa aqueous extract on the quality attributes of Valencia oranges under refrigerated condition (18±2°C and 85 % RH). Valencia oranges were treated with moringa aqueous extract (0.0, 0.5 1.0 and 3.0 %). Cleaned healthy two hundred and forty Valencia oranges were selected randomly and divided into 4 groups (60 oranges for each) and every group was divided to 4 subgroups (for the four storage periods). The treated Valencia oranges were stored at refrigerated condition for 45 days. This experiment was arranged in a factorial design with three replicates. The data pointed to Juice content, titratable acidity and ascorbic acid were decreased, while weight loss was increased by prolonging storage period. All moringa aqueous concentrations proved efficiency in maintaining quality of Valencia oranges during refrigerated condition. Moringa aqueous extract 1.0 % showed the higher effect on keeping quality attributes of Valencia oranges up to 45 days at 18±2°C and 85 % RH + 3 days shelf life (25±2°C and 75 % RH).