The invention provides a cloth cutting cutter, which is prepared from the following raw materials in parts by mass: 75 to 98.5 parts of silicon nitride powder, 5 to 10 parts of metallic oxides, 5 to 10 parts of rare earth oxides, 0 to 5 parts of transition metal carbides, 0 to 3 parts of bonding agents and 0 to 4 parts of aluminum nitride. Deionized water being 1.5 times of the quantity of the silicon nitride powder is also added into the raw materials of the cloth cutting cutter. The cloth cutting cutter is made of materials of silicon nitride and the like, and has the advantages that the wear resistant performance and the heat conduction performance are good; meanwhile, the heat radiation speed is high; the toughness of the cutting edge is greatly improved; fracturing cannot easily occur in the use process, so that the service life is prolonged.