The utility model discloses a tobacco rod quiescent combustion experimental device, which relates to an experimental device for tobacco industry. The tobacco rod quiescent combustion experimental device is composed of a bottom board and vertical acicular spines which are fixedly or movably connected on the bottom board. The bottom board is a white or light-colored board. The length of each acicular spine is 5mm to 30mm. The shape of the bottom board is in the shape of rectangle, square, circle, oval, hexagon, triangle and octagon. The smallest interval between an acicular spine and an adjacent acicular spine on the bottom board is 25mm to 50mm. The arrangement of the acicular spines on the bottom board is regular or irregular, evenly or unevenly. The amount of the acicular spines is at least 5. The utility model has the advantages of reasonable design, simple structure, easy manufacture and low cost. The experimental device is convenient, can ensure experimenters for meticulous observation to the quiescent combustion situation of a tobacco rod, so that correct judge to the quality of products can be given.