Battery box for electronic clinical thermometer

The invention provides a battery box for an electronic clinical thermometer. The battery box comprises a battery box cover and a shell for arranging a battery, a sliding rail structure is arranged inthe battery box cover, and a clamping groove is formed in the position, corresponding to the sliding rail, of the top of the shell. The clamping groove comprises the first clamping groove allowing thesliding rail to penetrate through and the second clamping groove allowing the sliding rail to slide. When the sliding rail penetrates through the first clamping groove and slides in the second clamping groove, the bottom of the sliding rail and the bottom of the second clamping groove are provided with parts capable of being matched with each other. The battery box provided by the invention is simple to assemble and firm in matching, the appearance of the battery box is not influenced at all, and only the sliding rail structure is arranged in the battery box cover, so that the battery box isparticularly suitable for a