Abstract: The aim was to study the degradation characteristics and soil remediation of fenpropathrin degrading bacteria HY1, in order to lay foundation for its practical application. By gas chromatography and shaking the bottle shock culture method, the location and type of degrading enzyme of strain HY1 were determined. At the same time, the effects of concentration of substrate, the inoculum of HY1, pH, temperature and sterilized soil and unsterilized soil on degradation of fenpropathrin were studied. The results showed that degrading enzyme of strain HY1 was extracellular enzyme and inducible enzyme. Fenpropathrin inducted degradation activity of strain HY1. The optimal concentration of substrate was 10 mg/L, the optimal pH value was 7.0, the optimal inoculum of HY1 was 6% (v/v), the optimum degradation temperature was 30℃. HY1 repaired soil the maximum degradation rate of 84.53% in the experiment soil remediation. The degradation rate of fenpropathrin by HY1 was faster in unsterilized soil than in sterilized soil, which indicated that it could degrade fenpropathrin together with the indigenous microorganisms. The degrading bacteria HY1 can effectively degrade fenpropathrin, and has good remediation effect on contaminated soil by fenpropathrin.