A foldable camping chair, including a foldable supporting frame which includes a connecting unit arranged between two front supporting blocks, a rear supporting block and the two front supporting blocks defining a triangular shape, two side connecting rods, and two front connecting rods; two recessed grooves are formed on a front side of the rear supporting block; two ends of each side connecting rod are movably articulated with a corresponding recessed groove and fixedly plugged in a corresponding front supporting block respectively; two ends of each front connecting rod is movably articulated with an end of the connecting unit and a front supporting block respectively; lower and upper ends of each front supporting block are plugged with a front supporting leg and a front supporting rod respectively; lower and upper ends of the rear supporting block are plugged with a rear supporting leg and a rear supporting rod respectively.