The femur is the longest, largest, and strongest bone of the human skeleton. The function of femur that is supporting the weight of the body and allowing motion of the lower extremity. These functions of femur bone lead to higher stresses on the femur. In this study the femur bone stresses analyzed by photoelasticity technique. The dimensions of the femur taken from a normal femur and drawn by the Computer Aided Design that is easy to be found by the dimensions of the femur prototype. The femur bone prototype cut from transparent polycarbonate materials plates. The transparent birefringes material was calibrated to find the stress optical constant by using tensile test specimen having dimensions taken from the ASTM- D638 according to thickness of the birefringes material plates. The stresses on the femur bone analyzed at different regions, the femur head, the femur neck and the femur shaft. The highest fringe order found at the femur neck and reached to 11 Fringe while in the femur head and femur shaft reached to 8 Fringes and 6 Fringes. The difference in the fringe order depended on the load applied on the bone and the shape of the femur bone. The principal stresses found with highest stress on the neck of femur 14.96Mpa and stresses less than at femur head and femur shaft, 10.88Mpa and 8.16Mpa sequentially .The result showed that the femur neck supports the highest stresses on the femur depend on the femur structure and shape.