The present invention is to provide a method for producing a toner capable of sufficiently decreasing the percentage of moisture content of a wet cake in the process of obtaining colored resin particles in wet state (wet cake), capable of reducing the workload in the following drying process, and thus excellent in productivity. A method for producing a toner comprising the steps of: a process of obtaining an aqueous dispersion of colored resin particles by forming colored resin particles by a wet method; a process of obtaining the colored resin particles in wet state (wet cake) by supplying the aqueous dispersion of the colored resin particles to a belt filter and performing solid-liquid separation; and a process of drying the wet cake, wherein a filter cloth continuous running type belt filter is used as the belt filter in the process of obtaining the wet cake, and the filter cloth continuous running type belt filter has a separation-washing mechanism, in which the aqueous dispersion of the colored resin particles is supplied on a lower filter cloth of the belt filter, the colored resin particles are separated followed by washing, and thus the wet cake is formed, and a pressure-ventilation mechanism, in which the wet cake is covered with an upper filter cloth, the wet cake, disposed between the upper and lower filter cloths, is ventilated while pressure is applied to the wet cake, and thus the wet cake having low percentage of moisture content is obtained.