To provide a load sensitive switching device, adjusting the magnitude of switching torque to a desired magnitude in switching output.

This load sensitive switching device, which switches output by rotating and linearly displacing a driven disc 30, includes: a first magnet unit in which a magnet 37 disposed in a first driven surface is opposite to a magnet 14 disposed in a first working surface 11a when the driven disc 30 is in a high-load position; a second magnet unit in which a magnet 39 disposed in a second driven surface is opposite to a magnet 18 disposed in a second working surface 11b when the driven disc 30 is in a low-load position; and a third magnet unit, in which a plurality of magnets of the same polarity are disposed in outer areas of the second working surface 11b and the second driven surface, when external load above a threshold is applied, the driven disc is allowed to locate in the high-load position against repulsive force between the magnets, and when the external load is under the threshold, the driven disc 30 is rotated from the high-load position to the low-load position by the repulsive force between the magnets.