The invention discloses a method using 3-cyanopyridine continuous hydrolysis to produce nicotinamide. The method has the advantages that continuous nicotinamide production using the 3-cyanopyridine hydrolysis is achieved, and the conversion rate of 3-cyanopyridine can reach 95%; the method mainly uses a fluidized bed catalytic hydrolysis reactor, a deactivated catalyst filtering and discharge andfiltrate loop is arranged at the bottom of a dense-phase section above a distribution plate, and a dilute-phase section is provided with a fresh catalyst storage tank and a valve for adding a catalyst; the continuous production is achieved through the fluidized bed catalytic hydrolysis reactor, raw material retention time is increased and high conversion rate in the continuous production is achieved by a circulation loop arranged at the outlet of the reactor, continuous catalyst replacing can be achieved under a stable operation environment through a catalyst replacing bypass, and shutdown caused by catalyst deactivation is avoided.