Knee joint is most complex joint in human body. Whole joint made from four different bones like femur, tibia, patella, fibula and between femur and tibia there is one other jelly type material menisci.Femur is longest bone in our human. Body due to Unhealthy food, the strength of bones is decreases now days. So we may find injury in knee joint five to ten in 100 people in our work. We will collect CT-SCAN data of femur and tibia of knee joint and will prepare 3D-CAD model using MIMICS and analysis will be done ANSYS software.