Natural rutile was used as a catalyzer to oxidize halohydrocarbons. The result shows that natural rutile has some photocatalytic capability. Such means as electron radiation, quenching and heat treatment were employed to improve the performance of natural rutile, and the ameliorative specimens were used to conduct photocatalytic oxidation of three kinds of halohydrocarbons. The effect shows that both quenching and heat treatment can improve the performance of rutile as a catalyzer. The tetrachloroethylene and trichloroethylene can be decomposed from 400μg/L to 5μg/L, whereas electron radiation seems not a feasible method to improve natural rutile. The study has laid a foundation for further researches.