Abstract: A polymer-supported titanate(PVAC–1) was prepared by the reaction of titanium tetrachloride with polyvinyl alcohol，and was been characterized with FTIR. The content of titanium of the catalyst was measured by the colorimetric analysis method. The supported titanate was used to catalyze esterification to form high boiling esters. The results showed that the catalytic activity of PVAC-1 was comparable with that of Ti(OBu)₄，a known highly active catalyst for the synthesis of high boiling esters. Using PVAC-1 as catalyst，the conversion of acid was up to 99.8%，97.5%，and 99.7% for the synthesis of DOP，di–heptanol and benzoate，respectively. The catalyst could be recycled without significant loss of activity.