provided is a microswitch wherein the versatility of a lever member can be prevented from being reduced while the rigidity of the lever member is improved . the microswitch is provided with a housing containing a switch mechanism , a plunger which transmits power to the switch mechanism , and a lever member , the base end of which is supported by the housing . in the microswitch , the tip end of the plunger abuts with the bottom surface of the lever member at an intermediate position in the longitudinal direction of the lever member , and an object to be detected can abut with the top surface of the lever member on the tip end side of the lever member . further , a first reinforcement portion is formed on the top surface of the lever member , excluding an object abutment portion with which the object to be detected is to be abutted , and a second reinforcement portion is formed on the bottom surface of the lever member , excluding a plunger abutment portion