The invention discloses an open-width continuous high-speed scouring, bleaching and whitening combine for chemical-fiber woven fabric. The open-width continuous high-speed scouring, bleaching and whitening combine is mainly characterized by being made by sequentially and continuously arranging and combining a cloth feed rack unit, a first prewasher unit, a first dewaterer unit, a scouring and bleaching machine unit, a second dewaterer unit, a whitening machine unit, a second prewasher unit, a quick rising machine unit and a wet cloth rack unit. The open-width continuous high-speed scouring, bleaching and whitening combine has the advantages such that the structure is reasonable, production efficiency is high, water is saved, consumption is lowered, and processed products are good in quality.