A clinical study of the Tibial Shaft fracture was made on 128 patients, who had been treated at the Department of Orthopedic Surgery, College of Medicine Kyung Hee Universlty from the October, 1971 to May, 1979. The results were as follows: 1. The rate of fracture union was accelerated under the age of 20 years but it was slow in aged group. 2. The poor prognosis of fracture union was shown in junction between middle and distal 1/3 than others. 3. The better prognosis of the fracture type was shown in oblique and spiral fracture than in the comminuted and segmental. 4. There was prolonged rate of union in case of associated fibula fracture. 5. The frequency of delayed and nonunion were more prevalent in open fracture. 6. Among the open comminuted tibial shaft fracture with skin and soft tissue loss, the good results was obtained by the Hoffmanns external skeletal fixation method.