The invention relates to the technical field of battery boxes, in particular to a heat-conducting battery box. The heat-conducting battery box comprises a battery box body, wherein multiple rows of heat-conducting plates are arranged in the battery box body and are provided with battery cells; and the battery box body is a totally enclosed box body, so that fine particles, such as dust and the like in air are effectively prevented from entering; and the external attack resistance of the box body is also improved. Meanwhile, all gaps of the battery box body are fully filled with heat-conducting glue, so that the heat generated by a battery is emitted in the fastest manner. Each heat-conducting plate comprises a partition plate and a bottom plate; and each bottom plate is arranged vertically to the corresponding partition plate and is bonded with the bottom part of the battery box body through the heat-conducting glue. Through the arranged bottom plates, the contact area of the heat-conducting plates and the bottom part of the battery box body can be increased; the heat dissipation effect is improved; and the technical problems that the battery box in the prior art is poor in heat-conducting property and dust easily falls into the battery box are solved.