We report the reconstruction of tibial bone tumors. One case was a giant cell tumor; 5 cases were osteosarcoma. We experienced these cases from 1989 to 2001, and follow up time was 8 months to 13 years. Many authors say reconstruction of tibial bone tumor is very difficult because of the high infection rate involved. However, we succeeded in achieving good results in a short follow-up by soft tissue cover of soleus, and had no cases of infection. We will next consider breakage of the prosthesis in a long follow-up.