The invention relates to a sinter pre-pelletizing method capable of improving cooling efficiency of a ring cooler. The sinter pre-pelletizing method comprises the following steps: mixing, pelletizing and distributing ingredients to produce a sintering feed; performing ignition and sintering on the sintering feed to produce sinter; crushing, pre-screening and cooling the sinter, wherein the crushing is realized by virtue of a single roller; the sinter with a great particle size and the sinter with a small particle size are produced after crushing; a pre-screening process is realized by virtue of pre-screening equipment; and cooling for the sinter with the great particle size is realized by virtue of the ring cooler. The sinter pre-pelletizing method disclosed by the invention can be used for improving the porosity of the sinter on the ring cooler and obviously improving the cooling efficiency of the ring cooler, and is beneficial to saving energy and lowering consumption, improving the quality of the sinter, saving energy and reducing emission, and improving the site environment.