Abstract: An emergency stop module for a robot or the like, of the type comprising a ody (1) forming a compression chamber (3) and fed with air under pressure, provided with an opening (5) which is normally closed by an inner plate (6) firmly attached to an outer flange (7), the body (1) and the outer flange (7) being firmly attached to two elements respectively of the robot, characterized by the fact that it is provided with an automatic resetting device formed of a piston-cylinder unit (14-16) arranged in the flange (7) and the rod (17) of which passes through the inner plate (6) to rest against the bottom (2) of the body (1).