The invention relates to a contact bolt machining process, and belongs to the field of auto parts production and manufacturing. The machining process sequentially comprises blanking, upsetting, head upsetting, forming, thread rolling and passivation. The machining process is simple, product size is stable, economic benefit is high, product dimensional requirements and product dimensional tolerancecan be met, universality is realized, and a series of special-shaped bolts with different specifications can be machined by mold adjusting.