This　paper　mainly　focuses　on　photoreactivation　effect　in　the　reclaimed　water　after　ultraviolet　disinfection.　Study　shows　that:　photoreactivation　effect　can　be　reduced,　or　even　controlled　by　increasing　the　UV　dose,　reducing　the　illumination　time　and　light　intensity　of　the　reclaimed　water,　and　extending　the　interval　time.