Distal femur fracture is 9cm inside femur, including the condyle and intercondylar fractures. Its incidence accounts for 4% of all fractures of the femur. Due to the characteristics of the fracture site bone structure. The fracture is mostly unstable and comminuted. Difficult to be firmly fixed, fractures is near the knee, spread to the articular surface, which is likely to affect the knee, being one of the most difficult to treat fractures.