The invention discloses a brake pad material for high-speed railway trains and a preparation method thereof, belonging to the technical field of powder metallurgy friction materials. The brake pad material is put into the mixer after drying and sieving the raw material powder, sprayed into the binder, placed in a steel mold after mixing and pressed, then sintered in a reducing atmosphere, and then processed in a reducing atmosphere. Made by heat treatment; wherein, the raw material powder is copper powder, iron powder, Ti2AlC powder, chromium powder, nickel powder, manganese powder, silicon dioxide, graphite, boron nitride and molybdenum disulfide. The invention also provides a preparation method of the brake pad material. In the present invention, the in-situ TiC obtained through Ti2AlC is used as the main friction component to prepare the material of the in-situ nano-TiC sheet skeleton, and then copper is used as the matrix, and a small amount of other metals are added to adjust the content of lubricating components such as graphite to finally obtain the Material with excellent dynamic effect and low wear rate. It is suitable as a brake pad material for high-speed railway trains.