Abstract: Femoral stress has been studied by electrometric experimental stress analysis methods to know about femoral stress value and its distribution case in front and rear of replacement to artificial femoral head.Study results show that left and right femoral stress is larger than that of front and rear.The stress near the femoral head obviously decreases after replacing femoral head with the artificial.The stress change of every point is very small after fixing by artificial femoral head using bone cement.The stress declining is inhibited near femoral head after using artificial femroal head with collar.The study results mean much for clinic treatment and can provide scrientific basis for developing better artificial femoral head.

Key words: artificial femoral head, replacement, stress