The invention discloses a polyurethane grouting material for simultaneously lifting and rectifying a high-speed railway ballastless track. The polyurethane grouting material is composed of a componentA and a component B, the component A is polyol modified diphenylmethane diisocyanate and polymethylene polyphenyl isocyanate, and the component B includes polyol. The polyurethane grouting material is a two-component polyurethane lifting material having the advantages of high expansion force, high closed pores, high bonding strength, high durability, good fluidity, fast reaction speed, good acidand alkali resistance, good hydrolysis resistance and excellent environmental friendliness. The material is mainly used for accurately lifting the settled section of the high-speed railway ballastlesstrack in a roadbed segment, and also can be used for lifting highway pavements and aviation airport concrete slabs and settling industrial building floors.