The invention relates to the technical field of a battery, in particular relates to a battery pack. The battery pack comprises a battery box, wherein a battery module and a liquid cooling pipe are arranged inside the battery box, the liquid cooling pipe is arranged on the bottom of the battery module, a moisture absorption area is also arranged inside the battery box, and the moisture absorption area is used for absorbing moisture inside the battery box. The battery pack has the following beneficial effects that a passive dehumidifying function is adopted, and the air humidity inside the battery is controlled, so that the reliability of a battery system is guaranteed, and the failure risk of electronic devices is decreased.