A snow grooming device, comprising: a support frame, configured to move along a first direction (x) and comprising a first side and a second side that are opposite to each other in the first direction (x); and a snow crushing and shaping apparatus, located at the bottom of the support frame and connected to the support frame, the snow crushing and shaping apparatus are configured to move along with the support frame in the first direction (x) and comprising a snow crushing structure proximal to the first side of the support frame and a snow shaping structure proximal to the second side of the support frame, a knife board, connected to the bottom of the support frame, wherein the snow crushing structure and the snow shaping structure are both disposed on said knife board, wherein the snow crushing structure comprises a plurality of snow crushing knifes arranged in a second direction (y), and the second direction (y) is parallel to a plane where the knife board is located and perpendicular to the first direction (x); and the snow shaping structure comprises a plurality of shaping members, the plurality of shaping members are arranged in the second direction (y) and parallel to one another; wherein each of the snow crushing knifes comprises a knife tail, a knife body, and a knife edge disposed on the knife body; the knife tail is connected to the knife board, the knife body is connected to the knife tail, and a plane where the knife body is located is perpendicular to the plane where the knife board is located; wherein the knife body comprises a first knife surface and a second knife surface disposed opposite to each other, and a side surface connecting the first knife surface and the second knife surface; and the knife edge is disposed on one of the first knife surface, the second knife surface and the side surface; wherein the snow crushing structure comprises a plurality of snow crushing knife groups (311, 312, 313) arranged in the first direction (x), and each of the snow crushing knife groups (311, 312, 313) comprises the plurality of snow crushing knifes; characterized in that, the plurality of snow crushing knife groups (311, 312, 313) are arranged into a plurality of rows, and in at least one row of a snow crushing knife group, the snow crushing knife having the knife edge on the first knife surface are alternated with the snow crushing knife having the knife edge on the second knife surface. a support frame, configured to move along a first direction (x) and comprising a first side and a second side that are opposite to each other in the first direction (x); and a snow crushing and shaping apparatus, located at the bottom of the support frame and connected to the support frame, the snow crushing and shaping apparatus are configured to move along with the support frame in the first direction (x) and comprising a snow crushing structure proximal to the first side of the support frame and a snow shaping structure proximal to the second side of the support frame, a knife board, connected to the bottom of the support frame, wherein the snow crushing structure and the snow shaping structure are both disposed on said knife board, wherein the snow crushing structure comprises a plurality of snow crushing knifes arranged in a second direction (y), and the second direction (y) is parallel to a plane where the knife board is located and perpendicular to the first direction (x); and the snow shaping structure comprises a plurality of shaping members, the plurality of shaping members are arranged in the second direction (y) and parallel to one another; wherein each of the snow crushing knifes comprises a knife tail, a knife body, and a knife edge disposed on the knife body; the knife tail is connected to the knife board, the knife body is connected to the knife tail, and a plane where the knife body is located is perpendicular to the plane where the knife board is located; wherein the knife body comprises a first knife surface and a second knife surface disposed opposite to each other, and a side surface connecting the first knife surface and the second knife surface; and the knife edge is disposed on one of the first knife surface, the second knife surface and the side surface; wherein the snow crushing structure comprises a plurality of snow crushing knife groups (311, 312, 313) arranged in the first direction (x), and each of the snow crushing knife groups (311, 312, 313) comprises the plurality of snow crushing knifes; characterized in that, the plurality of snow crushing knife groups (311, 312, 313) are arranged into a plurality of rows, and in at least one row of a snow crushing knife group, the snow crushing knife having the knife edge on the first knife surface are alternated with the snow crushing knife having the knife edge on the second knife surface.