The present investigation was carried out about the evaluation of antimicrobial activity against corrosion causing soil microbes on buried elements in acidified mediated soil by Agar disc diffusion method using Aqueous and Ethanol extract of Hibiscus rosa Sinensis leaves. This plant was subjected to solvent extraction with water and ethanol on increasing the polarity to identify and isolate the antimicrobial active materials. Crude aqueous and ethanol extract of Hibiscus has significantly inhibited the important microbes which causing corrosion such as S.aureus, Streptococcus, B. subtitles, Lactobacillus, Proteus, Corynebacterium, Pseudomonas, A.niger, Mucor and Desulphovibro sp. Results of the present studies investigation suggest that Hibiscus are the important effective plant for further work on isolating and characterizing of antimicrobial active materials.