Ureteral obstruction may result in permanent kidney damage. Research suggests that the Indonesian Propolis Extract (IPE) play a strong role on free oxygen radicals removal and prevents oxidative stress. This study aims to investigate the efficacy of IPE on malondialdehyde (MDA) reduction and systolic blood pressure (SBP) level down-regulationafter unilateral ureteral obstruction (UUO).A total of 32 rats were divided into four groups. Group 1 as control, Group 2 were rats with UUO, Group 3 were rats with UUO that were given IPE (oral 50 mg kgbody weight) and Group 4 were rats with UUO that were given IPE (oral 100 mgkg body weight). SBP level were measured once every week within duration of experiment and at day30 blood sample were taken for Malondialdehyde analysis. Statistical analysis was performed by one-way analysis of variance. There were statistically significant increase in MDA and blood pressure in Group 2, while there were significant decrease for MDA and blood pressure in Group 3 and 4 (p< 0.001). In this experiment we suggest that IPE prevents kidney damage by decreasing oxidative stress (MDA) and SBP.