A scroll compressor comprising: a casing comprising a rotation shaft; a discharge cover fixed inside the casing to partition the inside of the casing into a suction space and a discharge space; a first scroll revolving by rotation of the rotation shaft; a second scroll defining a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole communicating with a compression chamber having an intermediate pressure of the plurality of compression chambers; a back pressure plate defining a back pressure chamber for accommodating a refrigerant discharged from the intermediate pressure discharge hole, the back pressure plate comprising an intermediate pressure suction hole; a floating plate movably disposed on a side of the back pressure plate to define the back pressure chamber together with the back pressure plate; and a gasket disposed between the back pressure plate and the second scroll and having an intermediate pressure communication hole for allowing the intermediate pressure discharge hole to communicate with the intermediate pressure suction hole, the gasket blocking communication between the back pressure chamber and the suction and discharge spaces (S, D); and a coupling member for coupling the back pressure plate and the gasket to the second scroll, wherein the gasket comprises a gasket body having an inner circumferential surface and an outer circumferential surface, and the intermediate pressure communication hole and a coupling hole (148, 154) to which the coupling member is coupled are defined between the inner circumferential surface and the outer circumferential surface, characterized in that a plurality of coupling holes (215 to 219) are defined in the gasket body, and when a distance between two coupling holes (215 to 219) adjacent to each other of the plurality of coupling holes (215 to 219) is defined as a pitch, the intermediate pressure communication hole is disposed between first and second coupling holes(215, 216), which have the shortest pitch therebetween. a casing comprising a rotation shaft; a discharge cover fixed inside the casing to partition the inside of the casing into a suction space and a discharge space; a first scroll revolving by rotation of the rotation shaft; a second scroll defining a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole communicating with a compression chamber having an intermediate pressure of the plurality of compression chambers; a back pressure plate defining a back pressure chamber for accommodating a refrigerant discharged from the intermediate pressure discharge hole, the back pressure plate comprising an intermediate pressure suction hole; a floating plate movably disposed on a side of the back pressure plate to define the back pressure chamber together with the back pressure plate; and a gasket disposed between the back pressure plate and the second scroll and having an intermediate pressure communication hole for allowing the intermediate pressure discharge hole to communicate with the intermediate pressure suction hole, the gasket blocking communication between the back pressure chamber and the suction and discharge spaces (S, D); and a coupling member for coupling the back pressure plate and the gasket to the second scroll, wherein the gasket comprises a gasket body having an inner circumferential surface and an outer circumferential surface, and the intermediate pressure communication hole and a coupling hole (148, 154) to which the coupling member is coupled are defined between the inner circumferential surface and the outer circumferential surface, characterized in that a plurality of coupling holes (215 to 219) are defined in the gasket body, and when a distance between two coupling holes (215 to 219) adjacent to each other of the plurality of coupling holes (215 to 219) is defined as a pitch, the intermediate pressure communication hole is disposed between first and second coupling holes(215, 216), which have the shortest pitch therebetween.