PURPOSE: To provide a hermetic compressor which reduces cost and improves the reliability. CONSTITUTION: In this hermetic compressor 40 forming a sealed vessel 30 by welding a lower member 3 of the vessel to a cylindrical member 2 of the vessel and storing a compression mechanism part 31 and an electric motor part 32 in the sealed vessel 30, the lower member 3 of the vessel forms a basic part 3a, a fitting part 3b into the cylindrical member 2 of the vessel formed at outer periphery of the basic part 3a, and a leg part 3c formed more outward than the fitting part 3b by one member.