An investigation was undertaken to find out the effect of pre-harvest fruit bagging on physico-chemical properties of karonda (Carissa conjesta Linn.) cv. 'Konkan Bold' at Department of Horticulture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. Ratnagiri (MH) India, during 2010-2012 for two consecutive fruiting seasons. The experiment was conducted in randomized block design with six treatments replicated four times with a unit of 80 fruits per treatment per replication. The treatments comprised of various type of material used for bagging viz. T1 News paper bag; T2 Brown paper bag; T3 Butter paper bag; T4 Plastic bag; T5 Brown plastic bag and T6 - Control. The maximum fruit retention was noticed in T3 (Butter paper bag, 69.25%). Most of the treatments of fruit bagging improved the quality of karonda fruits among which T2 (Brown paper bag) recorded the highest T.S.S. (17.68ºbrix), reducing sugars (4.91%) and total sugars (8.49%). The highest fruit length (2.82cm), fruit diameter (2.56cm), fruit weight (12.45g) and pulp weight (11.23g) was recorded in control (No bagging) fruits. The highest score for colour, flavor, texture and overall acceptability was seen in T3 (Butter paper bag).