The invention discloses a novel method for presoaking, strewing and pulping linters. The novel method comprises a beating opener, an induced draft fan, an impurity remover, a pressure fan, a cyclone separator, a rotary spherical digester, a hydrogen peroxide tank, an alkaline return tank, a filter separator, an alkaline storage tank, an alkaline distribution tank, a trough, a first screw conveyer, a belt presser, a second screw conveyer, a first neutralizing tank, a first filter separator, a multi-effect evaporator, a distilled water tank, a belt-type washing machine, a first pulp tank, a refiner, a second pulp tank, a grit separator, a third pulp tank, a catalytic bleaching machine, a fourth pulp tank, a pulp machine, a second filter separator, a second neutralizing tank, a first sewage settling tank, a second sewage settling tank and a frame squeeze dewatering machine, wherein an intake hole for connecting an air compressor is formed in the rotary spherical digester, and an air bag is arranged inside the rotary spherical digester.