<p>Provided is a highly reliable scroll compressor which can supply oil to a back pressure chamber even during low pressure ratio conditions. A scroll compressor comprising a stationary scroll, and a revolving scroll that forms a compression chamber by revolving in a relative manner with respect to the stationary scroll, a back pressure chamber for pushing the revolving scroll into the stationary scroll being formed in the back surface of the revolving scroll relative to the stationary scroll; wherein the scroll compressor is provided with a back pressure valve or a back pressure hole for regulating the pressure of the back pressure chamber, a first oil supply means for supplying oil to the back pressure chamber from a discharge pressure space where a compressed refrigerant from a compression chamber is discharged, and a second oil supply means for supplying oil from the back pressure chamber either to the compression chamber or to an intake chamber formed in the intake side of the compression chamber.</p>
