The utility model relates to an experimental apparatus for tobacco essence, in particular to an experimental cigarette smoke collecting device which comprises a plurality of glass bottles with scales, a feeding conduit and a discharge conduit are inserted in the bottle plug of each glass bottle, the feeding conduit is communicated with the bottom of the bottle, and the smoke collecting device is characterized in that the discharge conduit of the former glass bottle is communicated with the feeding conduit of the next glass bottle, the rear end of each feeding conduit is provided with a porous stainless steel ball, and an evacuation port is arranged between the discharge conduit of the former glass bottle and the feeding conduit of the next glass bottle. The experimental cigarette smoke collecting device can effectively enrich the target substances in the smoke and accordingly improves the accuracy of the final detection. The experimental cigarette smoke collecting device can collect different compositions for analysis in one time and greatly improves the experiment efficiency.