A remote control small circuit breaker includes an N-pole circuit breaker unit, a P-pole circuit breaker unit and a conductive rod having one end connected to a charged member in the P-pole circuit breaker unit. The N-pole circuit breaker unit includes a handle mounted on a base thereof, a handle spring for handle reset and a control circuit board mounted in the base. The handle spring is connected in series in a circuit loop for power supply of the control circuit board. The other end of the conductive rod is connected to one end of the handle spring. The movable end of the handle spring comes into contact with and is separated from the other end of the circuit loop with closing and opening actions of the handle to realize the conduction and disconnection of the circuit loop. The invention realizes the on-off control of the circuit loop that supplies power for the control circuit board through the handle spring of the N-pole circuit breaker, when the circuit breaker is disconnected, the circuit loop is disconnected at the same time, to ensure no induction voltage at a load side of the circuit breaker during the tripping of the circuit breaker, and the invention is high in security level, compact in structure, and easy to assemble.