A battery explosion-proof assembly and a battery pack are provided. In the battery explosion-proof assembly, a cover (10) is configured to cover a battery case (40) and defining a through hole (130) capable of being communicated to an outside of the battery case (40). A burst membrane (20) is arranged to cover the through hole (130) and configured to expose the through hole (130) in an event of thermal runaway in the battery case (40), thereby releasing pressure from the battery case (40) through the through hole (130). A flow guiding assembly (30) is arranged on the cover (10), and is in communication with the through hole (130). The flow guiding assembly (30) is configured to guide the gas generated by thermal runaway to the through hole (130) during the thermal runaway in the battery case (40).
