Disclosed herein is an electric compressor. The electric compressor includes: a housing (100) which has a discharge chamber (102) through which refrigerant is discharged; and an oil separator (200) which is disposed in the discharge chamber (102), and includes a refrigerant inlet hole (201) through which refrigerant is drawn into the oil separator (200), and a foreign substance storage part (210) storing therein foreign substances contained in the refrigerant drawn through the refrigerant inlet hole (201).