To provide a crushing roller capable of preventing immobilization and dropout of an insert member.

The crushing roller 10 is produced by casting-fixing a plurality of insert members 20 with a ductile member to be formed into a flat-top circular cone roller. The insert members 20 are arranged radially adjacently opening a clearance between the insert members 20 with the ductile member casting-fixed on the rolling contact surface. A first clearance 70 between the minor diameter portions 60 of the insert member 20 is larger than a second clearance 80 between the major diameter portions 50.