PURPOSE: To stabilize a function of a push switch and promote thinning thereof.

CONSTITUTION: A recessed part 25 is formed in a fixed contact 13 with which a movable contact 16 is brought into contact so as to adopt multipoint contact or line contact for the contact between them. The fixed contact 13 provided on the upper surface of a base substrate 11 is continued to patterns 14, 14a, 20 on the rear surface of the base substrate 11 via through holes so that soldering can be applied. A spacer 17 is further placed on the upper surface of the base substrate 11 and a membrane sheet 18 is fixed to the spacer 17 so as to prevent the membrane sheet 18 from hindering an up-and-down motion of the movable contact 16.