A power switching device, comprising: a plug, connected to a power supply device and comprising an output terminal; a power switching assembly, connected to the plug and comprising a switching member, wherein the switching member is configured for switching a coupling form of the plug, and a control member configured for controlling the power switching assembly to move between different switching positions, the control member comprising a switching button, characterized in that the switching positions of the power switching assembly are switched by pressing the switching button, wherein the switching button is used to control the switching member to slide between a first position and a second position, wherein the switching button can be in an initial position corresponding to the first position of the switching member and a switching position corresponding to the second position of the switching member, wherein the switching button includes a pressing portion and a switching portion connected to the pressing portion, the pressing portion penetrating the housing to drive the switching portion to move between the initial position and the switching position under a pressing action, wherein the switching portion is formed to extend outward along an extension direction perpendicular to the pressing portion, wherein the switching portion includes two snapping arms extending towards the switching member and arranged parallel to each other, wherein a distance between the two snapping arms is smaller than a length of the switching member at the first position, wherein when the switching button is in the initial position and the switching member is in the first position, the two snapping arms are located above the switching member, and when the switching button is moved to the switching position while it is pressed, the switching member is snapped between the two snapping arms and is in the second position, wherein the switching member includes an elastic member, a first switching member and a second switching member, the first switching member and the second switching member being connected by the elastic member, wherein when the elastic member is in a compressed state under the control of the control member, the switching member is in the second position. a plug, connected to a power supply device and comprising an output terminal; a power switching assembly, connected to the plug and comprising a switching member, wherein the switching member is configured for switching a coupling form of the plug, and a control member configured for controlling the power switching assembly to move between different switching positions, the control member comprising a switching button, characterized in that the switching positions of the power switching assembly are switched by pressing the switching button, wherein the switching button is used to control the switching member to slide between a first position and a second position, wherein the switching button can be in an initial position corresponding to the first position of the switching member and a switching position corresponding to the second position of the switching member, wherein the switching button includes a pressing portion and a switching portion connected to the pressing portion, the pressing portion penetrating the housing to drive the switching portion to move between the initial position and the switching position under a pressing action, wherein the switching portion is formed to extend outward along an extension direction perpendicular to the pressing portion, wherein the switching portion includes two snapping arms extending towards the switching member and arranged parallel to each other, wherein a distance between the two snapping arms is smaller than a length of the switching member at the first position, wherein when the switching button is in the initial position and the switching member is in the first position, the two snapping arms are located above the switching member, and when the switching button is moved to the switching position while it is pressed, the switching member is snapped between the two snapping arms and is in the second position, wherein the switching member includes an elastic member, a first switching member and a second switching member, the first switching member and the second switching member being connected by the elastic member, wherein when the elastic member is in a compressed state under the control of the control member, the switching member is in the second position.