This paper carried out the screening of WO x /SiO2 catalyst carrier and the investigation of WO x loading capacity, and successfully screened a domestic SiO2 carrier with excellent performance. The structure and properties of the catalyst were characterized by nitrogen physical adsorption, XRD, Raman spectroscopy and TEM/EDS. The dispersion of WO x species on the carrier was mainly investigated, the catalytic reaction performance of disproportionation of ethylene and butene to propylene was investigated, and the performance was compared with that of a foreign commercial catalyst. The research results show that the WO x loading threshold of the domestic carrier S?SiO2 is 8%. At this time, the catalyst shows the best catalytic activity and selectivity. Compared with the catalytic performance of the comparative commercial catalyst, the catalyst activity is nearly 10% higher, and the stability and selectivity are equivalent, and the correlation structure characterization results can confirm that the dispersion characteristics of WO x species on the support are the key factors that affect the catalytic performance, while the SiO2 support and loading are both the key to the dispersion state of WO x species. This study can provide a basis for the localization of WO x /SiO2 catalysts for high?efficiency olefin disproportionation reactions, especially the selection of domestic SiO2 carriers.