The invention provides a continuous device used for chloridizing pyridone matter and a method for continuously chloridizing the pyridone matter. The continuous device comprises a continuous feeding unit, a continuous coil reaction unit and a product receiving unit, wherein the continuous coil reaction unit is provided with a coil reactor, a temperature control jacket and a counterbalance valve, the coil reactor is provided with an inlet pipeline, a reaction pipeline and an outlet pipeline which are connected in sequence, the reaction pipeline is arranged in the temperature control jacket, theinlet pipeline is connected with the continuous feeding unit, and the counterbalance valve is arranged on the outlet pipeline of the coil reactor; the product receiving unit is connected with the tailend of the outlet pipeline. By using the continuous device, the pyridone matter and a chloride agent can be continuously reacted and discharged in a reaction pipeline, the heating time for the reaction is more precisely controlled, the situation that after long-time heating, side reactions and impurities are generated is avoided, and the reaction speed and the conversion rate are increased by using a higher reaction temperature. By using the counterbalance valve, the concentration of HCl in the reaction pipeline is improved to increase the main reaction speed, and the reaction selectivity isimproved.