Abstract: W doped M phase VO₂(W-VO₂(M)) can undergo semiconductor-metal thermal phase transition at room temperature, which has great application potential in the field of smart window. It is of great significance to continue the study of W-VO₂(M) synthesis and its application in smart window under the background of double carbon. It was systematically reviewed from the three aspects research of VO₂(M) powder which was W doping, W co-doping and core-shell structure W doping. The feasibility of W and Ti co-doped phase VO₂ (W/Ti-VO₂(M)) powder was analyzed. The research idea of W/Ti-VO₂ (M) and SiO₂ composite to form core-shell structure (W/Ti-VO₂(M)@SiO₂) powder was proposed.