Automotive urea solution production device

The utility model discloses an automotive urea solution production device which comprises a multi-medium filter, an ultrafiltration unit, a reverse osmosis (RO) unit, an RO+EDI (electrodeionization) main unit and a desalted water storage tank, wherein desalted water in the desalted water tank is conveyed to a primary miscible device and a secondary miscible device through a desalted water conveying pump respectively; the primary miscible device comprises an input end and an output end, the input end is connected with the desalted water conveying pump through a desalted water heater, and the output end is connected with a solution cooler, a primary filter and a semi-finished product storage tank in sequence; the secondary miscible device is connected with a secondary filter, an ultraviolet sterilizer and a finished product storage tank in sequence. According to the automotive urea solution production device, the consumption of urea as a raw material and the pressure of the urea on the environment can be greatly reduced and the electrical consumption can be reduced; the production capacity and quality of a urea solution can be reliably guaranteed on the premise of linked production with a CO2 gas stripping urea device taking natural gas as a raw material.