The invention discloses a ganoderma lucidum spore wall breaking machine. The ganoderma lucidum spore wall breaking machine comprises a case, a feeding hopper, two wall-breaking rollers, a leakage-proof cover, mounting rods, first brushes, a discharging pipe, a screening barrel, a motor, second brushes, fine powder holes, a fine powder box, a coarse material port and a coarse material box. The feeding hopper is arranged at the top of the case, the lower end of the feeding hopper is communicated with the interior of the case, the two wall-breaking rollers in relative rotation are arranged in thecase and under the lower end of the feeding hopper, and the leakage-proof cover which is capable of covering the two wall-breaking rollers is arranged at the lower end of the feeding hopper. The mounting rods are horizontally and fixedly arranged on two opposite side walls, and each first brush is detachably arranged at one end, facing the periphery of the corresponding wall-breaking roller, of the corresponding mounting rod. Compared with the prior art, the ganoderma lucidum spore wall breaking machine has advantages that high efficiency and quickness in wall breaking and screening of ganoderma lucidum spores can be achieved, efficiency and effects in wall breaking and screening of ganoderma lucidum spores are improved, waste of the ganoderma lucidum spores is effectively prevented, andstructural simplicity and convenience in use are achieved.