The present invention discloses a compressor comprising: a vessel; a crankshaft including an annular mounting recessed groove which is formed on its outer circumferential surface; a compression mechanism disposed over the crankshaft, and configured to compress the refrigerant sucked from an outside through rotation of the crankshaft; and a stopper which consists of a first stopper member and a second stopper member, and includes a through-hole which is formed between the first stopper member and the second member. The crankshaft is inserted into the through-hole of the stopper, and the stopper is engaged and fixed on the annular mounting recessed groove.