Abstract: A snowplow shovel has a handle bar for pushing and controlling the snowplow that is constructed as a linking structure. A guide plate is disposed on a frame on a rear side of the shovel in advance, such that a pin can be directly inserted and slide in a guide groove of the guide plate. After snow shoveling is performed through pushing and control the handle bar, the shovel can simultaneously move to a snow collection location and move upwardly in corporation with pressing the handle bar. The shovel can achieve the operation of automatic snow unloading via naturally swinging and flipping along the direction of the arc of the guide groove according to the guidance of the pin inserted in the guide groove.