The utility model discloses a protection circuit module and a secondary battery pack comprising the same. The secondary battery pack comprises an anode terminal, a cathode terminal, a battery unit and a PCM (Protection Circuit Module). The anode terminal is manufactured by a plate-like conductive component, and is electrically connected to the PCM through a safety element; the cathode terminal is also manufactured by the plate-like conductive component, and is directly in electrical connection with the PCM; the anode terminal and the cathode terminal are formed at one end of the battery unit, and the end is provided with a remaining part by thermal welding; and the PCM comprises a printed circuit board (PCB), an external input and output terminal. a first shell and a second shell, wherein a protection circuit is formed on the PCB, one side of the PCB is provided with a cathode terminal connection part and a safety element connection part while the other side of the PCB is provided with an external input and output terminal connection part, the external input and output terminal is electrically connected to the protection circuit through the external input and output terminal connection part of the PCB, the first shell and the second shell are linked with each other by an assembly type fastening structure so as to cover the PCB and the safety element, and the PCM is loaded on the thermally welded remaining part in the state of being electrically connected to the safety element and the battery unit.