The invention discloses a cordyceps militaris bacteria cultivation method, and particularly relates to a cordyceps militaris bacteria cultivation method by utilization of traditional Chinese medicine (TCM) residues. The cordyceps militaris bacteria cultivation method by the utilization of the TCM residues includes the following steps: mixing TCM Schisandra extraction residues with water according to weight proportion of 1:1-2, obtaining a cultivation medium after sterilization, inoculating cordyceps militaris bacteria seed liquid on the surface of the cultivation medium, and cultivating inoculated cultivation medium for 10-15 days under the constant temperature of 25-27 DEG C and away from light. The cordyceps militaris bacteria cultivation method by the utilization of the TCM residues can effectively and fully utilize nutrients and effective ingredients contained in the TCM residues, production cost is low, and while the TCM residues are utilized effectively and fully, environment pollution is dramatically reduced.