▎ 摘　　要

NOVELTY - A catalyst comprises a metal oxide and a carrier. The metal oxide comprises tungsten metal oxide, cerium metal oxide, zirconium metal oxide and/or molybdenum metal oxide. USE - Catalyst is used for catalyzing citronellal reaction to prepare glycol (claimed). ADVANTAGE - The catalyst has high conversion rate and selectivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: preparation of the catalyst, which involves (S1) soaking carrier in metal salt solution to obtain mixture, and (S2) stirring and drying the mixture. The metal salt solution comprises tungsten metal salt solution, cerium metal salt solution, zirconium metal salt solution and/or molybdenum metal salt solution; and preparation of glycol, which involves (s1) mixing citronellal, solvent and catalyst to obtain the mixture, and (s2) stirring the mixture, reacting and filtering.