The invention discloses a dyeing and finishing method for all-cotton embroidery fabric or all-cotton voile. The all-cotton embroidery fabric or all-cotton voile is processed through the procedures of white blank singeing, long spinning vehicle scouring and bleaching, mercerizing, dyeing and oiling shaping in sequence, wherein during the long spinning vehicle scouring and bleaching process, 28-32 g/L of tea saponin, 3-5 g/L of OPE (Octylphenol Polyoxyethylene Ether), and 4-6 g/L of N, N-sodium oleoyl di-taurinate into the treating liquid of a long spinning vehicle material groove; the treating liquid temperature is controlled to be 98 DEG C, the vehicle speed is controlled to be 40 meter/minutes, and the piling heat preservation time is controlled to be 40 minutes. According to the invention, only one-time processing is implemented on the long spinning vehicle, the equipment utilization ratio is increased, the damage to gray fabric is reduced, and the water, electricity and steam consumption is reduced by 50%.