Automobile extrusion type SCR denitration catalyst with good low temperature activity and preparation method of automobile extrusion type SCR denitration catalyst

The invention provides an automobile extrusion type SCR denitration catalyst with good low temperature activity. The catalyst comprises the following components in parts by weight: 100 parts of titanium tungsten powder, 1-3 parts of active promotion aids, 2-7 parts of hydroxypropyl methyl cellulose, 1-5 parts of polyoxyethylene, 2-5 parts of oleic acid, 1-6 parts of a glass fiber, 2-10 parts of ethylene glycol, 2-5 parts of lactic acid, 15-35 parts of a catalyst precursor solution, 2-6 parts of cholamine, 1-10 parts of silica sol, 4-10 parts of ammonia water and 1-16 parts of deionized water.The automobile extrusion type SCR denitration catalyst provided by the invention has remarkable advantages, the extrusion type catalyst is an active material as a whole, has a relatively large effective mass and excellent durability, and is remarkable in low temperature activity effect due to addition of the active aids; meanwhile, to meet identical emission standards, the amount of materials of the extrusion type catalys