Abstract: A study on the influence of provisioning bacterial isolates and NP fertilization on total microorganism and degradation level of hydrocarbon has been conducted to improve land damages due to the pollutant. Isolates of Pseudomonas fluorescens bacteria were delivered into inceptisol soil and that of the soil by fertilizating the nitrogen-phosphorus with N low, N medium, N high, as well as P low, P medium and P high of dosages. The results showed that the bacteria and fertilizers significantly influenced total microorganisms and degradation level of hydrocarbons. The total bacteria increased significantly in the polluted soil due to both the bacterial isolates and fertilizers. Consequently, the hydrocarbon content decreased significantly in the bacteria provisioned soil compared with the soil without bacterial isolates. Thus, the bacterial delivery into the hydrocarbon polluted soil has significantly enhanced the degradation level of the pollutant. Continuously, when fertilizing the polluted soil with fertilizers of nitrogen-phosphorus, it also successfully reduce the hydrocarbon content in the polluted soil. This result assumed that the isolates bacteria and the fertilizers effectively improve the damages of polluted soil. Moreover, there was a very significant interaction between the isolates bacteria with the fertilizers. The best results for reducing hydrocarbon in the inceptisol soil was achieved with the medium dosage of nitrogen-phosphorus fertilization.