A reciprocating compressor is provided that may include an outer stator; an inner stator provided at an inner side of the outer stator with a predetermined gap therebetween; a mover configured to perform a reciprocating movement in the gap between the outer stator and the inner stator; a piston coupled to the mover to perform a reciprocating movement therewith; a cylinder, into which the piston may be inserted to form a compression space while performing a reciprocating movement; a frame coupled to the cylinder; a first support member coupled to the outer stator and the frame; and a second support member separated from the first support member, but coupled to the inner stator and the frame, thereby facilitating concentricity of the motor and compressor device, as well as simplifying an assembly process as the motor and compressor device are divided into several blocks for assembly.