The invention discloses a loose type continuous washing device and continuous washing equipment for a cylindrical knitted fabric. A fabric quantity control swing roller is arranged over the other endof a caterpillar band, a cylindrical knitted fabric guiding mechanism is arranged on one side of the fabric quantity control swing roller, a fabric outlet is formed in the portion, at the fabric discharging end of the cylindrical knitted fabric guiding mechanism, of a shell, a padder is arranged at the position, corresponding to the fabric outlet, of the outer side of the shell, and a liquid collecting cover is arranged below the padder; a containing pond for containing corresponding liquid is arranged at the lower portion of the shell, a corresponding pipeline is arranged on the liquid collecting cover, and the corresponding pipeline is communicated with the corresponding containing pond; a circulation pump is arranged inside the containing pond, and a heating pipe is arranged inside theportion, on one side of the circulation pump, of the containing pond; a first spraying mechanism is arranged over the caterpillar band between the fabric quantity control swing roller and a cropping roller. The cylindrical knitted fabric is operated in the scotching open-width state, the flatness is high, no fold or scratch is caused, loose type washing is performed, the cylindrical knitted fabricis high looseness, the cylindrical knitted fabric is high in dimension stability, the cylindrical knitted fabric is good in touch, the washing efficiency is high, and the water, electricity and steamconsumption is low.