The invention discloses an SCR catalyst production system which comprises a mixer, a storage room, an automatic production line, a primary drying kiln, a secondary drying kiln, a capacitance kiln and the like, wherein the production line mainly comprises a product conveying line, a tray loading and unloading system, an upper cover loading and unloading system and a catalyst loading and unloading system; the primary drying kiln comprises a primary drying kiln body, a product conveying system, a gas circulation control system, a temperature control system and a humidity control system; the secondary drying kiln comprises a kiln body, a steam pipeline, a frequency conversion control axial flow fan, a humidity control system and a kiln vehicle guide rail; and the capacitance kiln comprises a kiln body, a conveyor belt and a moisture removal system. A catalyst blank production line is automatically assembled, and the automatic production efficiency is greatly improved. According to the production process generated by the unique structure of the drying kilns, the product deformation is reduced, and the rejection rate is reduced. The products are conveyed in the capacitance kiln by adopting ceramic roller rods, the production system is stable in structure, difficult to deform and high in firing yield and achieves heating of heating wires.