To realize a conical crusher in which a support ring receiving reaction of crushing force to a housing is tightly assembled and is easily detached.

In this conical crusher constituted of a support ring 6 supporting an outer conical body 5 to which an outer conical body liner 4 is fitted and supported and fixed on a housing 3 and an inner conical body 9 to which an inner conical body liner 8 is fitted, a conical engagement part 20 partly provided with a notch part is installed on a support ring 6 and the housing 3, and an outer diameter D1 on the tip side in the inserting direction of the engagement part 20 of the support ring 6 is made larger than an outer diameter D2 on the rear end side.