To provide a push-latch device which can adjust a protrusion margin in a pull-in operation, which can adjust a protrusion margin in a release operation, and which can adjust an attractive force of a magnet.

This push-latch device 100 includes a case body 10, a fixing member 20, a slide member 30, a spring 40 as a first urging means, a guide pin 50, and a spring 54 as a second urging means. The slide member 30 comprises: a slide portion body 31; a cylindrical protrusion body 60 which is rotatably connected to a leading end of the slide portion body 31 via a load absorbing spring 80: a stopper member 65 which is rotatably provided by being screwed into a screw portion 61 formed on the outer peripheral surface of the protrusion body 60; and a spring holder 70 which is rotatably provided by being screwed into an internal thread formed in the inner peripheral surface of the protrusion body 60 and which holds the load absorbing spring 80.