Fractures of the tibial condyle are characterized that often involve the articular surfaces and frequently associated with soft tissue injuries such as collateral ligament, cruciate ligament and menisci of the knee. The author analyzed 12 cases of tibial condyle fractures, which were surgically treated by reduction of depressed articular surface under assist of arthroscopy and then fixed with cannulated cancellous screws and accompanied by bone graft under the control of image intensifier in 9 cases of the 12 cases. The purpose of this study are (1) obtaining accurate reduction of the depressed articular surface, (2) preventing knee joint from the surgical wide dissection, (3) not only bony problems but also combined menisci and ligament injuries were diagnosis and management. We can obtain more anatomical reduction and excellent or good functional knee score since extensive exposure is avoided. There is no complication with regard to arthroscopic surgery and rapid recovery with reduced pain and early full ROM are obtained after follow-up study of a mean of 1 year.