AbstractThe rapid development of wearable electronics requires developing flexible and efficient energy storage systems. To this end, novel flexible fiber and fabric batteries attract increasing attention due to their combined superiorities in flexibility, weavability, and miniaturization compared with conventional bulky structures. Herein, the recent progress in the electrode fabrication, structure design, and battery performance of fiber and fabric batteries is summarized, and the possibility of battery textiles, challenges, and future directions to satisfy the requirement of the next‐generation flexible energy storage systems is also highlighted.