The invention aims at providing a forced smoking cessation assisting device capable of automatically spraying tobacco control liquid. The assisting device comprises an upper box body, a lower box body, an upper cover, a cigarette baffle sheet, a display panel, a function key, a first side plate, an elastic buckle, a fastening groove, a pressing sheet, a chute, a gasket, a pop-up device, a second side plate, a pressing button, a delay switch button, a pop-up button, a loudspeaker device, a liquid inlet hole, a spring device, a liquid storage box, a plurality of injectors and a protective drum. The assisting device disclosed by the invention has the beneficial effects that by controlling the pop-up efficiency of the pop-up device, the cigarette taking interval and the total cigarette taking amount of smoking quitting personnel can be controlled, so as to gradually reduce the smoking amount of the smoking quitting personnel and to finally help the smoking quitting personnel completely give up smoking addiction; and the tobacco control liquid, which can be injected into cigarette by virtue of the pop-up device, can reduce the intake of nicotine and tar in the smoking quitting personnel, so as to reduce the harm of the cigarette to human bodies.