Battery pack, battery pack detection method, battery pack detection system and vehicle

The invention provides a battery pack, a battery pack detection method, a detection system and a vehicle, the battery pack comprises a battery unit and a damage detection unit, the damage detection unit is arranged on at least part of the surface of the battery unit, and the damage detection unit is configured to detect the damage of the battery pack when the battery pack is impacted by external force. The damage detection unit generates a signal capable of representing the damage position of the battery unit, so that the damage position of the battery pack can be effectively detected, the health state of the battery pack is comprehensively known, and the safety is improved.