The influences of the 1%HF solution pretreatment on electrochemical properties of ZrCr0.7Ni1.3 were investigated.The results show that creak initiation and propagation and the increase of the specific surface area were accelerated due to the effect of the microcell corrosion during the HF pre treating,therefore the electrochemical properties of the alloy were improved. The changes of surface morphology and composition of the alloy resulting from the HF pre treatment are responsible for the improvement in the electrochemical properties of the alloy.