The utility model discloses a bilaterally symmetrical cigarette separating device which comprises cigarette separating structures which are bilaterally symmetrical, wherein each cigarette separating structure respectively comprises three groups of cigarette receiving boxes; a top frame is respectively erected at the top of each cigarette receiving box; a top plate is arranged between front and rear frame edges above the top frame on each side; the top plates respectively cover above openings of the three cigarette receiving boxes below the top frames, and the top plate on the rightmost side above the top frame on the left and the top plate on the leftmost side above the top frame on the right side respectively stretch out of openings of the corresponding top frames to form cigarette sliding plates; rotating shafts are further rotatably arranged between the front and rear frame edges between the adjacent top plates above the top frame on each side; a turning plate is respectively fixed on each rotating shaft. The cigarette separating device disclosed by the utility model can rapidly separate measured cigarettes into the six cigarette receiving boxes; the cigarette separating device, while reducing a damage degree of the cigarettes, can guarantee a smooth and rapid cigarette separating process.