This study evaJuated the antibacterial activity of combination of secang and mangosteen extract against Bacillus cereus and Eschericia coli. The extracts were maserated by water and freezdryed. Antibacterial activity was tested by using well diffusion method. The measured parameter was the diameter of inhibited zone. This research mangosteen and secang 2:8, 4:6, 5:5, 6:4, 8:2 with inhibition zo…