A push switch comprising: a body having the shape of a box one face of which is open; a columnar rotor having a rotation axis perpendicular to the open face, the rotor being received and rotatably held in the body and including a plurality of first teeth and second teeth as many as the number of the first teeth, the first teeth being circumferentially arranged on an outer perimeter surface of the rotor near the upper face in the direction of the rotation axis and formed to project, the second teeth circumferentially arranged on the outer surface of the rotor near the lower face in the direction of the rotation axis and formed to project, the first teeth and the second teeth being staggered with each other; stationary contacts (91a, 91b, 92b, 93) arranged and formed on a circumference centered on the rotation axis on an inner bottom face of the body; a moving contact attached on the lower face of the rotor and in sliding contact with the stationary contacts; a cover in contact with an end face near the upper face of the rotor and covering the open face of the body; a knob including an operation part projecting outside through an opening formed in the cover and being configured to be depressed, a base part stopped by the cover from slipping out, and a projecting part formed to project from the base part toward the rotor, the knob being able to move in a direction perpendicular to the open face, being disposed side by side with the rotor, and being received and held in the body; and a spring urging the knob in the direction in which the knob projects through the opening; characterized in that a side surface of each of the second teeth on the upper face side is a first inclined surface inclined so that the surface departs from the upper face of the rotor in the direction opposite to the direction of rotation of the rotor; a side surface of each of the first teeth on the lower face side is a second inclined surface inclined so that the surface departs from the lower face of the rotor in the direction opposite to the direction of rotation; a rear side surface of each of the first teeth is parallel to the direction of the rotation axis, the rear side surface continuing from the second inclined surface and located backward in the direction of the rotation; the projecting part in an initial state is positioned between adjacent ones of the first teeth at a height at which the rear side surface is positioned; and the projecting part pushes the first inclined surface to rotate the rotor in response to a depression of the knob and pushes the second inclined surface to rotate the rotor in response to a return of the knob. a body having the shape of a box one face of which is open; a columnar rotor having a rotation axis perpendicular to the open face, the rotor being received and rotatably held in the body and including a plurality of first teeth and second teeth as many as the number of the first teeth, the first teeth being circumferentially arranged on an outer perimeter surface of the rotor near the upper face in the direction of the rotation axis and formed to project, the second teeth circumferentially arranged on the outer surface of the rotor near the lower face in the direction of the rotation axis and formed to project, the first teeth and the second teeth being staggered with each other; stationary contacts (91a, 91b, 92b, 93) arranged and formed on a circumference centered on the rotation axis on an inner bottom face of the body; a moving contact attached on the lower face of the rotor and in sliding contact with the stationary contacts; a cover in contact with an end face near the upper face of the rotor and covering the open face of the body; a knob including an operation part projecting outside through an opening formed in the cover and being configured to be depressed, a base part stopped by the cover from slipping out, and a projecting part formed to project from the base part toward the rotor, the knob being able to move in a direction perpendicular to the open face, being disposed side by side with the rotor, and being received and held in the body; and a spring urging the knob in the direction in which the knob projects through the opening; characterized in that a side surface of each of the second teeth on the upper face side is a first inclined surface inclined so that the surface departs from the upper face of the rotor in the direction opposite to the direction of rotation of the rotor; a side surface of each of the first teeth on the lower face side is a second inclined surface inclined so that the surface departs from the lower face of the rotor in the direction opposite to the direction of rotation; a rear side surface of each of the first teeth is parallel to the direction of the rotation axis, the rear side surface continuing from the second inclined surface and located backward in the direction of the rotation; the projecting part in an initial state is positioned between adjacent ones of the first teeth at a height at which the rear side surface is positioned; and the projecting part pushes the first inclined surface to rotate the rotor in response to a depression of the knob and pushes the second inclined surface to rotate the rotor in response to a return of the knob.