The invention discloses a lubricant composition for a Hastelloyalloy series-G cold heading technology. According to the invention, MVI base oil is taken as base oil, a plurality of composite additives are cooperated, which comprise an antirust agent, an anti-oxidant, a metal passivator, an oiliness agent, a friction improver, an extreme pressure agent, an anti-wear agent, a dispersant, an anti-foaming agent, an adhesion agent, and an oxidation and corrosion inhibitor. The composition has good bearing abrasion resistance, extruding performance, low-temperature flowing diffusivity, lubricity and cooling performance, and has the advantages that the oil film strength is large, oil film thickness keeps stabilization, no peculiar smell is generated, skin stimulation is not generated, corrosion and oxidation are not generated on the surface of the processed parts, power energy consumption is reduced, low temperature fluidity is good, anti-foaming property is good, demulsibility and thermooxidizing qualitative performance are good, generation of a precipitate and a paint film is reduced, and the shaped part is easily cleaned.