A distal humerus fracture nonunion is one of the complications with which we should be vigilant. It requires an open reduction and rigid internal fixation. However, treatment with an operative procedure is difficult because the small bones involved in distal humerus fracture nonunion or if osteoporosis is present. And an improvement in the function of the elbow joint is not satisfied because of a postoperative elbow joint contracture. Furthermore, the risk of anesthesia to elderly patients restricts the use of an operation for treatment. A weekly injection of teriparatide has the ability to stimulate bone formation. We present a case of an 87-year-old woman treated with a weekly injection of teriparatide for the nonunion of a distal humerus fracture.