To provide a cone crusher which can prevent a difficulty of charging in a large-sized raw material even if a concave drops corresponding to wear, and can prevent also a decrease in fragmentation efficiency by the detention of the raw material inside a crushing chamber.

Upper surfaces 221-223 of a mantle 220 are formed and has a triangular cross-section shape in which a predetermined position 224 projects upward since an inclined angle of the lower part from the predetermined position 224 of the upper surfaces 221-223 of the mantle 220 is larger than that of the upper part, and on the lower side from the predetermined position 224 the center line in the cross-section shape of the crushing chamber is bent downward, by which it is possible to suppress a percentage in which a slot size of the upper part of the crushing chamber is reduced compared to the initial state even if the concave 210 drops corresponding to the wear. In addition, since the inclination in the lower part of the crushing chamber is large, the crushed raw material is discharged easily.