Infrared fluorescence from the sensitized reaction in SF6-UFS-H3 system induced by 10.6.m P(24) line of a pulsed CO2 laser is investigated. The time resolved IB fluorescence of vibrationally excited HF* is measured with an InSb photovoltic detector and is compared with that from the SF6-H2 system under the similar experimental conditions. Our results show a linear dependence of fluorescence intensity with laser fluence. The time resolved IE fluorescence of HF* is dependent on the partial pressure of UF6, the fluorescence intensity obey the single exponential decay at lower PUIV but non-single exponential decay is observed at higher POT,- The time dependence of the HF* fluorescence intensity is explained with the infrared photo-sensitized reaction mechanism of the 8F6-UFe-H3 system.