The effect of Mo element in ceramets has been analysed. The appropriate adding contents of Mo element in ceramets with high content of nickel have been studied. The results show that the optimum contents of Mo element in 40Ni ceramet and 30Ni ceramet are 13wt.% and 15wt%, respectively. The addition of Mo element thickened the size of circular phase and increased the contents of Ti Mo and W,solid-solved in stick phase.