The invention discloses a tester for the dropping rate of cigarette combustion cones. The tester comprises test units and a controller, and the test units are arranged on the controller. The test units comprise first supports, second supports and filters. Electromagnets are arranged on the second supports, and laser sensors and cigarette holders are arranged at the front ends of the first supports; the filters are arranged at the back ends of the first supports, and pressure regulating valves, flow sensors, electromagnetic valves and negative pressure machines are sequentially connected to one sides of the filters. The controller comprises a control board and an interface board. A single-chip microcomputer, the signal input ends of the laser sensors, the signal output end of the interface board, the signal output ends of the negative pressure machines and a touch-screen interface are arranged on the control board; the signal input end of the control board, a voltage conversion part and the signal output ends of the electromagnets are arranged on the interface board. The tester for the dropping rate of the cigarette combustion cones is harmless to the human body and high in test efficiency, and labor can be effectively saved.