Abstract: The first domestic 600000t per year nickel slag powder production line of Shandong New Building Materials Co., Ltd. was put into production in December 2013. The project ,developed by Sinoma Technology & Equipment Group Co., Ltd., aimed at Ni-Fe alloy smelting slag “zero discharge”, developing circular economy, protecting ecological environment, energy saving and emission reduction. Currently this production line runs stably and reliably. Its technical index fully meets the design requirements and the product performance is excellent. Thus this production line has created good economic benefits and filled the gap of domestic roller mill in Nickel iron smelting slag powder processing field.