A compressor comprising a scroll compression mechanism including: a stationary scroll and an orbiting scroll, wherein the stationary scroll is provided with a stationary-side end plate and a spiral-shaped stationary-side wall structure that is vertically provided on one surface of the stationary-side end plate, the stationary-side end plate being secured at a stationary-side support position positioned close to an outer circumference of the stationary-side end plate; and the orbiting scroll is provided with an orbiting-side end plate and a spiral-shaped orbiting-side wall structure that is vertically provided on one surface of the orbiting-side end plate and that meshes with the stationary-side wall structure, wherein a hollow-cylindrical orbiting boss is provided at a center of a bottom surface of the orbiting-side end plate so as to protrude downward, and wherein the orbiting-side end plate is supported at a position closer to a center of the orbiting-side end plate than a position facing to the stationary-side support position in a manner that allows a revolving motion, the orbiting-side support position being located on an outer circumference side of the orbiting boss; a discharge port for a compressed refrigerant gas being formed at a substantially center portion of the stationary-side end plate so as to pass therethrough, a discharge valve that opens/closes the discharge port and a discharge cover that forms a discharge chamber between the stationary-side end plate and itself being secured at a top surface of the stationary-side end plate, and wherein for at least one of a clearance between a tip portion of the stationary-side wall structure and the orbiting-side end plate and a clearance between a tip portion of the orbiting-side wall structure and the stationary-side end plate, the clearance at a side further outward than the orbiting-side support position is made larger than the clearance at the center side further inward than the orbiting-side support position, and the clearances (S1, S2) are 0.25 to 2.0 × 10 -3 times a thickness of the stationary-side end plate or the orbiting-side end plate, and characterized in that the stationary-side end plate is configured to warp so that a center portion of the stationary-side end plate protrude towards the orbiting scroll side, the center portion of the stationary-side end plate being closer to a center of the stationary-side end plate than the stationary-side support position, and the orbiting end plate deforms at a portion closer to the outer circumference of the orbiting-side end plate than the orbiting-side support position so as to approach the stationary scroll, due to the compressed refrigerant gas that has undergone the compression at the scroll compression mechanism passing through the discharge port, pushing up the discharge valve, and being discharged into the discharge chamber. a stationary scroll and an orbiting scroll, wherein the stationary scroll is provided with a stationary-side end plate and a spiral-shaped stationary-side wall structure that is vertically provided on one surface of the stationary-side end plate, the stationary-side end plate being secured at a stationary-side support position positioned close to an outer circumference of the stationary-side end plate; and the orbiting scroll is provided with an orbiting-side end plate and a spiral-shaped orbiting-side wall structure that is vertically provided on one surface of the orbiting-side end plate and that meshes with the stationary-side wall structure, wherein a hollow-cylindrical orbiting boss is provided at a center of a bottom surface of the orbiting-side end plate so as to protrude downward, and wherein the orbiting-side end plate is supported at a position closer to a center of the orbiting-side end plate than a position facing to the stationary-side support position in a manner that allows a revolving motion, the orbiting-side support position being located on an outer circumference side of the orbiting boss; a discharge port for a compressed refrigerant gas being formed at a substantially center portion of the stationary-side end plate so as to pass therethrough, a discharge valve that opens/closes the discharge port and a discharge cover that forms a discharge chamber between the stationary-side end plate and itself being secured at a top surface of the stationary-side end plate, and wherein for at least one of a clearance between a tip portion of the stationary-side wall structure and the orbiting-side end plate and a clearance between a tip portion of the orbiting-side wall structure and the stationary-side end plate, the clearance at a side further outward than the orbiting-side support position is made larger than the clearance at the center side further inward than the orbiting-side support position, and the clearances (S1, S2) are 0.25 to 2.0 × 10 -3 times a thickness of the stationary-side end plate or the orbiting-side end plate, and characterized in that the stationary-side end plate is configured to warp so that a center portion of the stationary-side end plate protrude towards the orbiting scroll side, the center portion of the stationary-side end plate being closer to a center of the stationary-side end plate than the stationary-side support position, and the orbiting end plate deforms at a portion closer to the outer circumference of the orbiting-side end plate than the orbiting-side support position so as to approach the stationary scroll, due to the compressed refrigerant gas that has undergone the compression at the scroll compression mechanism passing through the discharge port, pushing up the discharge valve, and being discharged into the discharge chamber.