The invention discloses a novel hemostatic material and a preparation method thereof. The novel hemostatic material is a polymer generated by performing copolymerization-crosslinking and surface crosslinking treatment on mineral clay and acrylate, wherein mineral clay is subjected to purification, pickling purification and high-temperature activation pretreatment and serves as a main raw material. The novel hemostatic material disclosed by the invention overcomes the shortcomings of an existing commonly used hemostatic product, particularly a hemostatic material for moderate and severe wounds, and is applicable to bleeding control and first aid of the moderate and severe wounds. A test shows that the novel hemostatic material has the characteristics of high efficiency, quickness, convenience in use and low cost, does not have any side effect, is safe to a human body, and is favorable for large-area popularization and use in the future.