To provide a button switch capable of reducing an assembly operation time, and reducing costs.

A button switch 1 comprises: a holding member 2; a switch operation member 3, which is held by the holding member 2 so that the switch operation member 3 can be pushed, to which spring force in a direction opposite to a push operation direction P is applied by a returning spring 11, and which has a hook 4 elastically deformable in two faces orthogonal to each other for executing a switch operation; and a lock member 5 having a lock face for locking the hook 4 of the switch operation member 3 and integrated with the holding member 2.