Wall switch with small-angle key

The utility model relates to a wall switch with a small-angle button, which comprises a button, an insulating base, a swing assembly and a contact piece assembly, the swing assembly comprises a swing piece, the button touches and presses an upper swing block of the swing piece, a spiral spring is inserted into a spring hole cavity on a lower swing arm of the swing piece, and a connecting part of the spiral spring is inserted into a movable contact piece of the contact piece assembly in a notch. The two sides, corresponding to the swing direction of the swing part, in the lower opening end of the notch are both provided with stirring protruding heads in a protruding mode, the two stirring protruding heads are oppositely and symmetrically arranged, so that the lower end opening of the notch is in a narrow opening shape, the movable contact piece penetrates through the narrow opening of the notch to stretch into the notch, and the stirring protruding heads are matched with the movable contact piece in a pushing