Abstract: To study the influence of reduction temperature on the performance of Pt/PTFE/foam SiC structured hydrophobic catalyst, 200, 225, 250, 275, 300 ℃ were chosen as the reduction temperatures to prepare the different catalysts. The as-prepared catalysts were characterized by dynamic contact angle measurement, XRD, XPS, TEM, etc, moreover, their catalytic activity for LPCE was tested. Result shows that reduction temperature has no effect on the catalyst hydrophobicity. Bad dispersion and obvious aggregation are observed in the catalysts reduced by 200 ℃ and 225 ℃. Among the five catalysts, the catalyst reduced by 275 ℃ has the least size distribution and the smallest average particle size of Pt particles. Three valences, Pt(0), Pt(Ⅱ) and Pt(Ⅳ) exist in these catalysts, and Pt(0) is the key for catalytic isotope exchange. Pt(0) proportion of the catalyst reduced by 275 ℃ is the highest of the five ones. The catalytic activity of the catalyst reduced by 275 ℃ is also the highest for LPCE among these catalysts. Thus, 275 ℃ is the best one of the chosen reduction temperatures for Pt/PTFE/foam SiC.