For useful research animal to study human’s disease and for xenotransplantation donor, pig was studied to improve the quality of in vitro production (IVP). But, still the developmental ability of in vitro porcine embryos is still lower than in vivo embryos. Using a antioxidant is one of the strategy to overcome the drawback of in vitro producted embryos by protecting the oocyte from free radicals during in vitro maturation (IVM). Resveratrol, one of the plant-derived polyphenol antioxidants, have been used as effective antioxidants. Therefore, resveratrol treatment during IVM of porcine oocytes is expected to improve efficiency of the IVP by reducing free radical accumulation. In this study, we designed control (no treated) and resveratrol treatment groups (0, 2 and 4uM), evaluated maturation rate, cleavage rate, blastocyst formation rate and total cell number. Additionally GSH and ROS accumulation levels were measured via staining oocytes. In the results, maturation rate had not shown significant difference among the groups. However, in further development, not only the results of cleavage rate (0uM : 84.64±2.65 vs 4uM : 93.67±2.36, p<0.05) and blastocyst formation rate (0uM : 6.39± 0.90, vs 4uM : 13.67±2.32, P<0.05) were significantly increased in 4uM resveratrol treated group, and result of total cell number (0uM : 22.47±0.76 vs 2, 4uM : 30.35±1.76, 27.65±1.23, P<0.05) also shown significant difference in 2, 4uM resveratrol groups with control. GSH accumulated levels of matured oocytes in resvetrol treated groups were significantly higher than control. Meanwhile ROS levels of treated groups were significantly reduced [GSH (0uM : 142±10.49 vs 2, 4uM : 163.2±3.29, 169.7±0.94, P<0.05), ROS (0uM : 170.2±7.76 vs 2, 4uM : 118.6±7.90, 130±7.07, P<0.05)]. From these results, we conclude the treatment of resveratol improved further development of porcine embryos by regulating intracellular GSH, ROS levels during porcine IVM. Therefore, exogenous antioxidants such as a resveratol can be supportive substances for obtaining the improved quality of IVP.