An ice crushing device, wherein the device comprises: a housing assembly, the housing assembly comprising a housing and an ice bank supported within the housing; an ice crushing mechanism disposed in the ice bank and comprising an ice cutter shaft, several movable ice cutters and several stationary ice cutters disposed on the ice cutter shaft at an interval; a driving mechanism for driving the ice bank to rotate, at least a portion of the driving mechanism being mounted in the housing; the housing assembly further comprises an ice-discharging substrate provided at the bottom of the ice bank, and the ice-discharging substrate is fixedly disposed relative to the housing, the ice cutter shaft is fixed on the ice-discharging substrate, the ice-discharging substrate is provided with an ice-discharging port communicated with the ice bank, and the ice cubes prepared by an ice maker are crushed by the ice crushing mechanism in the ice bank and then discharged through the ice-discharging port; a stop assembly disposed in the ice bank; when the ice crushing device is in a first state, the stop assembly is in an initial state and a stopping surface is formed at the ice-discharging port to stop the ice cubes from falling; when the ice crushing device is in a second state, the stop assembly displaces or changes its shape under the action of an external force to release the stopping surface; after the external force disappears, the stop assembly returns to the initial state and forms the stopping surface again; characterized in that, the stop assembly is mounted on a distal end face of the ice-discharging substrate, the stop assembly comprises a stopper and a restoring member, the stopper is used to form a stopping surface stopping ice cubes from falling off, the restoring member is used to provide a restoring force to return the stopper, the distal end face of the ice-discharge substrate is provided with a snap-fitting portion for fixing the stopper and the restoring member; wherein the stopper is disposed at a position on the ice-discharging substrate adjacent to the ice-discharging port, the stopper forms a stopping surface with a preset height at a boundary of the ice-discharging substrate and the ice-discharging port, and the stopping face blocks the channel through which the ice cubes fall. a housing assembly, the housing assembly comprising a housing and an ice bank supported within the housing; an ice crushing mechanism disposed in the ice bank and comprising an ice cutter shaft, several movable ice cutters and several stationary ice cutters disposed on the ice cutter shaft at an interval; a driving mechanism for driving the ice bank to rotate, at least a portion of the driving mechanism being mounted in the housing; the housing assembly further comprises an ice-discharging substrate provided at the bottom of the ice bank, and the ice-discharging substrate is fixedly disposed relative to the housing, the ice cutter shaft is fixed on the ice-discharging substrate, the ice-discharging substrate is provided with an ice-discharging port communicated with the ice bank, and the ice cubes prepared by an ice maker are crushed by the ice crushing mechanism in the ice bank and then discharged through the ice-discharging port; a stop assembly disposed in the ice bank; when the ice crushing device is in a first state, the stop assembly is in an initial state and a stopping surface is formed at the ice-discharging port to stop the ice cubes from falling; when the ice crushing device is in a second state, the stop assembly displaces or changes its shape under the action of an external force to release the stopping surface; after the external force disappears, the stop assembly returns to the initial state and forms the stopping surface again; characterized in that, the stop assembly is mounted on a distal end face of the ice-discharging substrate, the stop assembly comprises a stopper and a restoring member, the stopper is used to form a stopping surface stopping ice cubes from falling off, the restoring member is used to provide a restoring force to return the stopper, the distal end face of the ice-discharge substrate is provided with a snap-fitting portion for fixing the stopper and the restoring member; wherein the stopper is disposed at a position on the ice-discharging substrate adjacent to the ice-discharging port, the stopper forms a stopping surface with a preset height at a boundary of the ice-discharging substrate and the ice-discharging port, and the stopping face blocks the channel through which the ice cubes fall.