A reciprocating compressor includes a compressing unit fixed by a first frame inside a hermetic casing, for compressing gas, a driving motor fixed by a second frame and a third frame inside the hermetic casing, a spring seat member connected with a piston of the compressing unit and positioned between the first frame and the second frame, a plurality of connection members respectively connecting the first and second frame and having a predetermined space in the circumferential direction of the first and second frame, a first spring installed between the first frame and the spring seat member, a second spring installed between the spring seat member and the second frame, wherein each end of the first and second springs is positioned in a space among the connection members. Therefore, the compressor can be miniaturized and the installation space of the compressor can be substantially reduced.