A compressor comprising: a shell; a compressing mechanism provided in the shell, and having a compression chamber where refrigerant is compressed and a discharge port from which the refrigerant compressed in the compression chamber is discharged; and a discharge-valve mechanism provided in a discharge chamber provided between the shell and the compressing mechanism, the discharge-valve mechanism being configured to open and close the discharge port, wherein the discharge-valve mechanism includes a valve seat attached to the compressing mechanism and having a valve-seat hole communicating with the discharge port, and a reed valve having a fixed end attached to the compressing mechanism and a distal end as a free end, the reed valve being configured to close the valve seat when the reed valve is located on the valve seat, wherein the valve seat is formed of material having a longitudinal elastic modulus lower than a longitudinal elastic modulus of the compressing mechanism, wherein the valve-seat hole has a diameter larger than a diameter of an opening end of the discharge port that is located on an outlet side of the discharge port, characterized in that with regard to a contact length between the reed valve and the valve seat on a center line that extends in an extending direction of the reed valve through a central portion of the reed valve in a width direction of the reed valve, a contact length at one of regions located on opposite sides of the valve-seat hole on the center line that is a region closer to the distal end of the reed valve is smaller than a contact length at the other region that is a region closer to the fixed end of the reed valve. a shell; a compressing mechanism provided in the shell, and having a compression chamber where refrigerant is compressed and a discharge port from which the refrigerant compressed in the compression chamber is discharged; and a discharge-valve mechanism provided in a discharge chamber provided between the shell and the compressing mechanism, the discharge-valve mechanism being configured to open and close the discharge port, wherein the discharge-valve mechanism includes a valve seat attached to the compressing mechanism and having a valve-seat hole communicating with the discharge port, and a reed valve having a fixed end attached to the compressing mechanism and a distal end as a free end, the reed valve being configured to close the valve seat when the reed valve is located on the valve seat, a valve seat attached to the compressing mechanism and having a valve-seat hole communicating with the discharge port, and a reed valve having a fixed end attached to the compressing mechanism and a distal end as a free end, the reed valve being configured to close the valve seat when the reed valve is located on the valve seat, wherein the valve seat is formed of material having a longitudinal elastic modulus lower than a longitudinal elastic modulus of the compressing mechanism, wherein the valve-seat hole has a diameter larger than a diameter of an opening end of the discharge port that is located on an outlet side of the discharge port, characterized in that with regard to a contact length between the reed valve and the valve seat on a center line that extends in an extending direction of the reed valve through a central portion of the reed valve in a width direction of the reed valve, a contact length at one of regions located on opposite sides of the valve-seat hole on the center line that is a region closer to the distal end of the reed valve is smaller than a contact length at the other region that is a region closer to the fixed end of the reed valve.