Glycerol hydrogenolysis was catalyzed by Pt/WO3/ZrO2 to give 1,3-propanediol (1,3-PD) in the yields up to 24 %. The catalytic activities and the selectivity toward 1,3-PD were remarkably affected by the type of support, the type of loaded noble metal (NM) and the preparation/impregnation procedure. Controlled experiments show that the active site of catalyst for the formation of 1,3-PD may be the Pt over WO3 supported on ZrO2. Glycerol hydrogenolysis was catalyzed by Pt/WO3/ZrO2 to give 1,3-PD in high yields up to 24 %. The other noble metals tested for this catalysis were much less effective for the formation of 1,3-PD than Pt. Furthermore, a sequential impregnation of WO3 and then Pt on ZrO2 is necessary to make effective catalysts. These facts together with the others suggest that the active site for the hydrogenolysis of glycerol to 1,3-PD may be Pt on WO3 supported on ZrO2.