A scroll compressor comprising: a casing ; a driving motor comprising a stator fixed to an inner surface of the casing , and a rotor rotatably disposed in the stator ; a rotating shaft coupled to and being rotatable with the rotor ; an orbiting scroll coupled to the rotating shaft and provided with an orbiting wrap at one side of an orbiting end plate to perform an orbiting motion; a fixed scroll provided with a fixed wrap on one side surface of a fixed end plate , the fixed wrap being engaged with the orbiting wrap to define a compression chamber, and at least one refrigerant accommodating groove recessed to a preset depth from at least one of a side surface of the fixed wrap and a side surface of the orbiting wrap constituting the compression chamber, wherein the compression chamber comprises a first compression chamber (V1) provided in an inner surface of the fixed wrap and a second compression chamber (V2) provided in an outer surface of the fixed wrap , characterized in that the fixed end plate is provided with a first discharge port configured to discharge refrigerant in the first compression chamber (V1) and a second discharge port configured to discharge refrigerant of the second compression chamber (V2), an auxiliary discharge port is provided between the first discharge port and the second discharge port , an inlet of the auxiliary discharge port is spaced apart from an inlet of the first discharge port and an inlet of the second discharge port , and an outlet of the auxiliary discharge port communicates with an outlet of the first discharge port and/or an outlet of the second discharge port . a casing ; a driving motor comprising a stator fixed to an inner surface of the casing , and a rotor rotatably disposed in the stator ; a rotating shaft coupled to and being rotatable with the rotor ; an orbiting scroll coupled to the rotating shaft and provided with an orbiting wrap at one side of an orbiting end plate to perform an orbiting motion; a fixed scroll provided with a fixed wrap on one side surface of a fixed end plate , the fixed wrap being engaged with the orbiting wrap to define a compression chamber, and at least one refrigerant accommodating groove recessed to a preset depth from at least one of a side surface of the fixed wrap and a side surface of the orbiting wrap constituting the compression chamber, wherein the compression chamber comprises a first compression chamber (V1) provided in an inner surface of the fixed wrap and a second compression chamber (V2) provided in an outer surface of the fixed wrap , characterized in that the fixed end plate is provided with a first discharge port configured to discharge refrigerant in the first compression chamber (V1) and a second discharge port configured to discharge refrigerant of the second compression chamber (V2), an auxiliary discharge port is provided between the first discharge port and the second discharge port , an inlet of the auxiliary discharge port is spaced apart from an inlet of the first discharge port and an inlet of the second discharge port , and an outlet of the auxiliary discharge port communicates with an outlet of the first discharge port and/or an outlet of the second discharge port . <EOS>