The invention discloses a foldable optical energy charger which comprises solar energy panels, a control box and a supporting rod, fixed folding rods are arranged on the two sides of each solar energy panel, rotating shafts are arranged at the two ends of each fixed folding rod, and the adjacent solar energy panels can be connected in an end-to-end mode through movable folding rods arranged on the rotating shafts. The first-level solar energy panel is arranged on the control box, and a controller, a DC-AC inverter and a storage battery are arranged in the control box and electrically connected in sequence. The foldable optical energy charger is used for solving the problems that an existing solar energy charger is low in conversion rate, and portability and conversion rate can not be taken into account, and is simple in structure, convenient to carry, high in conversion rate and conversion speed, capable of collecting optical energy faster and suitable for popularization and implementation.