In the current investigations on the effect of microfungi on hydrocarbon polluted soil sample from Salem district. The screening of microfungi from three different hydrocarbon molecules of benzene, toluene and xylene were involved for bioremediation potential by native fungi. Some of the microfungi were isolated and screening for degradation process were analysed. The maximum potential degradation of Aspergillus flavus on BH medium with 1% concentration of benzene, toluene and xylene were manipulated with other ingredients. The most potential fungi such as A.flavus, A.fumigatus, A.niger, A.terreus, Fusarium solani, Penicillium citrinum and Trichoderma viride were analysed and screened. The minimum zone of inhibition of A.fumigatus (2mm) with xylene and Fusarium solani (2mm) was determined. The aim of the study in attention on the survey of fungi and the potential ability to bring out degradation of hydrocarbon.