An ice-crushing device, comprising: an ice storage box; an ice-crushing module provided at a bottom of the ice storage box and comprising an ice blade shaft and several movable ice blades and several stationary ice blades mounted on the ice blade shaft, the ice-crushing module being communicated with the ice storage box through an ice outlet at the bottom of the ice storage box; a driving mechanism disposed on a side of the ice-crushing module and at least used to drive the movable ice blades to rotate relative to the stationary ice blades; wherein the driving mechanism comprises a motor and a first transmission unit and a second transmission unit driven by the motor, an ice-agitating rod is disposed in the ice storage box, the first transmission unit drives the movable ice blades to rotate relative to the stationary ice blades, the second transmission unit drives the ice-agitating rod to rotate, and a rotation axis of the first transmission unit is arranged parallel to a rotation axis of the second transmission unit; wherein the ice-crushing module comprises a housing, the ice blade shaft is disposed in the housing, the ice storage box comprises an ice storage portion forming an ice storage cavity, and an extension wall extending from one side of the ice storage portion to the bottom characterized in that the housing is fixed on the extension wall, the housing is provided with an ice inlet butted with the ice outlet, a guide groove is provided on an outer side of the ice outlet, a guide block is provided on the outer side of the ice inlet, and the guide block is caught in the guide groove; wherein a baffle is further provided outside the ice outlet, and the ice-crushing module abuts against the baffle to limit the position of the ice-crushing module upon installation. an ice storage box; an ice-crushing module provided at a bottom of the ice storage box and comprising an ice blade shaft and several movable ice blades and several stationary ice blades mounted on the ice blade shaft, the ice-crushing module being communicated with the ice storage box through an ice outlet at the bottom of the ice storage box; a driving mechanism disposed on a side of the ice-crushing module and at least used to drive the movable ice blades to rotate relative to the stationary ice blades; wherein the driving mechanism comprises a motor and a first transmission unit and a second transmission unit driven by the motor, an ice-agitating rod is disposed in the ice storage box, the first transmission unit drives the movable ice blades to rotate relative to the stationary ice blades, the second transmission unit drives the ice-agitating rod to rotate, and a rotation axis of the first transmission unit is arranged parallel to a rotation axis of the second transmission unit; wherein the ice-crushing module comprises a housing, the ice blade shaft is disposed in the housing, the ice storage box comprises an ice storage portion forming an ice storage cavity, and an extension wall extending from one side of the ice storage portion to the bottom characterized in that the housing is fixed on the extension wall, the housing is provided with an ice inlet butted with the ice outlet, a guide groove is provided on an outer side of the ice outlet, a guide block is provided on the outer side of the ice inlet, and the guide block is caught in the guide groove; wherein a baffle is further provided outside the ice outlet, and the ice-crushing module abuts against the baffle to limit the position of the ice-crushing module upon installation.