The utility model relates to a bamboo wall thickness measuring device comprising a measuring table, one side of the measuring table is provided with a baffle plate, the measuring table is provided with a first cylinder pushing a bamboo tube to the baffle plate, and a telescopic rod driving end of the first cylinder is provided with a clamping plate cooperating with the baffle plate to clamp the bamboo tube; a V-shaped groove located beside the baffle is formed in the measuring table, a pair of roll shafts used for supporting the bamboo tube and capable of driving the bamboo tube to rotate is arranged in the V-shaped groove, and a pair of measuring angles used for clamping the tube wall of the bamboo tube in a matched mode is arranged at the front end of the V-shaped groove. Wherein the first measuring device is used for measuring the distance between the clamping plate and the baffle, and the second measuring device is used for measuring the distance between two measuring angles. The bamboo wall thickness measuring device is convenient to use, simple to operate, time-saving, labor-saving, high in working efficiency, capable of measuring the average value of the diameter and the wall thickness of the bamboo tube, and beneficial to classifying the bamboo tubes with different diameters and different thicknesses.