After adjusting components of the Fe-base alloy powder which is used to clad bylaser, we find that crack direction and cracking sensitivity in laser cladded layers change with composition of the cladded layers. The included angle between the crack direction and the laser scanning direction decreases as Ni content in the cladded layers is increased. When Ni content is increased to above 15wt-%, cracks disappear. The reason for these results is that the crystallizing orientation of the overlapping zone is changed with changing of the amount of Ni in the cladded layers. So we think that controlling the crystallizing orientation of laser cladded layers is an effective method to decrease the cracking sensitivity of laser cladded layers.