The invention discloses a coal slurry filter cake crushing method with superstrong processing performance, which is characterized is that multilevel processing is adopted, every level provides the best feeding particle size for the next level, and finally, multiple pairs of parallel crushing shafts in multiple groups are used for working simultaneously in order to guarantee that the crushing work with ultrahigh transient passing-through performance is completed; when a crusher which is developed based on the coal slurry filter cake crushing method provided by the invention having superstrong processing performance is used for crushing a coal slurry filter cake, the effects of ultrahigh transient passing-through performance, reliable working, less failure and simple management can be reached, the coal slurry filter cake crushing method is particularly suitable for being used in large modernized coal washing plants and is also beneficial to being used under the situation that a quick-operating filter press is used and viscosity and moisture of the filter cake are greatly changed, therefore, the coal slurry filter cake crushing method is a brand-new coal slurry filter cake crushing method with superstrong processing performance.