Crude aqueous extract of Cleome rutidosperma was investigated for diuretic and antibacterial activity. The diuretic activity was tested in rats at 400 and 600 mg/kg, orally and compared with furosemide (20 mg/kg, intraperitoneally) as the standard. The antibacterial activity was assessed by disc diffusion method against Bacillus subtilis , Bacillus laterosporus , Staphylococcus aureus , Micrococcous luteus, Pseudomonas aeruginosa , Vibrio cholerae , Escherichia coli and Salmonella typhi at concentrations of 100, 200 and 400 µg/disc respectively. Ciprofloxacin (5 µg/disc) was used as reference control for the antibacterial study. The extract was found to possess significant dose dependent diuretic activity and also effective against both gram-positive and gram-negative bacteria in a concentration dependent manner.