The present invention relates to a sterilizer and is provided to offer a simple but multi-functional device for sterilization. The sterilizer comprises a main body, which includes a space where a container can settle, and a connecting section which is placed in the main body of the sterilizer and connected to the container electrically. The container comprises as follows: a receiving section where liquid containing ingredients of an antiseptic solution or a cleaning solution is contained； a heating section which is placed in the container and heats up objects placed in the receiving section； an ultrasonic cleansing section which is place in the container and cleanses the objects soaked in the solution through ultrasonic vibration； and a connecting section which is placed in the container, is connected electrically to the heating section and the ultrasonic cleansing section, and electrically connects the heating section and the ultrasonic cleansing section to the main body by being connected to the connecting section. The main body comprises as follows: a central processing section which controls at least one movement chosen among the heating section, the ultrasonic cleansing section, or the combination of the two based on external input instructions, or which controls at least one movement chosen among the heating section, the ultrasonic cleansing section, or the combination of the two based on input pattern through the connecting section； and a power supply section which provides power to the heating section and the ultrasonic cleansing section through the connecting section. The power supply section is controlled by the central processing section.소독기가 개시된다. 일 실시 예에 있어서, 상기 소독기는 용기가 안착될 수 있는 공간을 포함하는 본체 및 상기 본체에 배치되며 상기 용기와 전기적으로 접속되는 접속부를 포함한다. 상기 용기는 소독액 또는 세정액 성분을 포함하는 액체가 수용되는 수용부, 상기 용기에 배치되며 상기 수용부에 배치되는 대상물을 가열하는 히팅발열부, 상기 용기에 배치되며 초음파 진동을 이용하여 상기 액체에 침지되는 상기 대상물을 세척하는 초음파 세척부 및 상기 용기에 배치되며 상기 히팅발열부 및 상기 초음파 세척부와 전기적으로 연결되며 상기 접속부와의 연결을 통하여 상기 히팅발열부 및 상기 초음파
