The invention relates to a chloromethyl isopropyl carbonate continuous reaction device and method, in particular to a continuous reaction device consisting of a multi-stage continuous stir reactor capable of generating reaction between chloromethyl chloroformate and isopropanol to generate chloromethyl isopropyl carbonate, and a continuous reaction rectifying tower. The reaction device has the characteristics that firstly, the chloromethyl chloroformate and the isopropanol are continuously mixed in a storage tank, then the mixture enters multiple stages of serially connected reaction kettles,hydrogen chloride is sucked away during reaction, and materials are pumped into the rectifying tower after the reaction in the multiple stages of reaction kettles is completed; the hydrogen chloride is completely cleared away through heating of a reboiler; after the reaction in the tower is balanced, the product is put into a rectifying device, thus obtaining a finished product. The hydrogen chloride gas at the top of the tower is condensed to remove isopropanol, and then enters a vacuum pump; after removal in the vacuum pump is completed, the gas enters a hydrogen chloride absorption workingsection, thus obtaining hydrochloric acid.