The invention discloses a compound capable of realizing rapid demoulding during the manufacturing of a polyurethane sole. The compound comprises a component A and a component B. The compound is characterized in that the component A comprises polyester polyol, a chain extender, a catalyst, a foaming agent and a foam stabilizer; and the component B is an isocyanate prepolymer prepared by subjectingisocyanate, polyester polyol and an auxiliary agent to a reaction. The compound of the invention can shorten demoulding time of a polyurethane sole product and improves the efficiency of a sole production line.