<p>Disclosed related to a linear compressor preventing the damages and variations of the piston and the cylinder which are important components of the linear compressor, and improving the reliability of the linear compressor as the spring supporter bumps into the stator cover before the flange unit of the piston bumps into the cylinder when the piston is over-advanced as composing the protrusion protruded toward each other at least one of the stator cover and spring supporter.</p>
