A push button switch (1,1') that comes into conductive contact with circuit contacts (42,43) of a circuit board, the push button switch (1,1') comprising: a pressing operation portion (2,2') including a main portion, a first pusher portion (21,21') that projects from the main portion, and a second pusher portion a first actuating portion including a first body portion (311,311') positioned to face the first pusher portion (21,21'), a first skirt portion formed of a rubber elastic body that is continuously connected to a lower peripheral part of the first body portion (311,311') and elastically supports the first body portion (311,311'), and a first movable contact provided at a bottom of the first body portion (311,311'); and a second actuating portion including a second body portion formed of a tubular rubber elastic body positioned to face the second pusher portion and having a cavity therein, a second skirt portion formed of a rubber elastic body that is continuously connected to a lower peripheral part of the second body portion and elastically supports the second body portion, and a second movable contact provided at a bottom of the second body portion, wherein when the pressing operation portion (2,2') is depressed by a first distance while the second pusher portion is in contact with the second body portion, the second skirt portion buckles, the second movable contact comes into contact with one of the circuit contacts of the circuit board, and the first pusher portion (21,21') comes into contact with the first body portion (311,311'), and wherein when the pressing operation portion (2,2') is depressed by a second distance while the first pusher portion (21,21') is in contact with the first body portion (311,311'), the first skirt portion buckles and the first movable contact comes into contact with another one of the circuit contacts of the circuit board, characterised in that the second pusher portion is apart from the first pusher portion (21,21') and projects from the main portion; wherein the pressing operation portion (2,2') has a groove formed between the first pusher portion (21,21') and the second pusher portion, the first skirt portion and the second skirt portion, which buckle and are bent upward when the pressing operation portion (2,2') is depressed by a second distance, being received by the groove. a pressing operation portion (2,2') including a main portion, a first pusher portion (21,21') that projects from the main portion, and a second pusher portion a first actuating portion including a first body portion (311,311') positioned to face the first pusher portion (21,21'), a first skirt portion formed of a rubber elastic body that is continuously connected to a lower peripheral part of the first body portion (311,311') and elastically supports the first body portion (311,311'), and a first movable contact provided at a bottom of the first body portion (311,311'); and a second actuating portion including a second body portion formed of a tubular rubber elastic body positioned to face the second pusher portion and having a cavity therein, a second skirt portion formed of a rubber elastic body that is continuously connected to a lower peripheral part of the second body portion and elastically supports the second body portion, and a second movable contact provided at a bottom of the second body portion, wherein when the pressing operation portion (2,2') is depressed by a first distance while the second pusher portion is in contact with the second body portion, the second skirt portion buckles, the second movable contact comes into contact with one of the circuit contacts of the circuit board, and the first pusher portion (21,21') comes into contact with the first body portion (311,311'), and wherein when the pressing operation portion (2,2') is depressed by a second distance while the first pusher portion (21,21') is in contact with the first body portion (311,311'), the first skirt portion buckles and the first movable contact comes into contact with another one of the circuit contacts of the circuit board, characterised in that the second pusher portion is apart from the first pusher portion (21,21') and projects from the main portion; wherein the pressing operation portion (2,2') has a groove formed between the first pusher portion (21,21') and the second pusher portion, the first skirt portion and the second skirt portion, which buckle and are bent upward when the pressing operation portion (2,2') is depressed by a second distance, being received by the groove.