Abstract: The Ni-WC-RE combination powder was triturated by solid-phase birdnesting method. The influence of the appropriate adding of RE and WC into combination powder on processing property,wearability and corrosion resistant property has been investigated.The test results show that the combination powder has a good processing property.the abradibility corrosion resistance of spray-welding layers were increased by adding appropriate amount of RE.The abradibility of spray-welding layers was increased but corrosion resistance was decreased with increasing of WC.