The selection basis of vacuum refining in steel rolling department of Shougang Jingtang and the technical design characteristics of VD furnace were introduced. The dual working station VD furnace was mainly composed of the vacuum pump, vacuum automatic regulation system, vehiclemounted mobile vacuum vessel and lid system, alloy feeding system, bottom argon blowing system, etc., and had the metallurgical functions of degassing, deoxidizing, natural decarbonization, adjusting alloy composition, removing inclusions and purifying molten steel. The doublelid and doublevessel layout mode can shorten the refining treatment time by about 510 min, and make the connection of converter, refining and continuous casting match reasonably and smoothly. The implementation of online wire feeding process can improve the absorption rate of the core wire and achieve environmental friendliness.