The invention provides a notebook computer battery based on a structure convenient to disassemble and solves the problem that service life of the battery is shortened due to simultaneous charging andusing of the conventional notebook computer. The notebook computer battery comprises a battery body, an insert groove, a groove, bulge hooks, a spring, a slide switch I and slide switches II, whereinthe slide switch I and the slide switches II are mounted on the surface of the battery body, the tail end of the insert groove is connected with the slide switch I and the spring, the tail part of thespring is fixed at the tail end of the groove, the two identical bulge hooks are arranged at the left end and the right end of the groove respectively, openings of the bulge hooks right face the tailend of the groove, and the two identical bulge hooks are connected with the slide switches II respectively.