Abstract: Provided in the present application are an outdoor camping device, a camping cart, and a foldable cart frame. A foldable camping cart includes a first frame and a second frame, the first frame and the second frame being folded and unfolded by means of a folding mechanism, the folding mechanism being configured at a bottom of the camping cart to be adapted for load-bearing, where the folding mechanism includes: an upper folding member, which is operable to be folded upwards; a lower folding member, which is foldable upwards and is configured to support the upper folding member in a preset position in an unfolded state; and a linkage component configured to connect the upper folding member and the lower folding member to the first frame and to hold the upper folding member in the preset position in the unfolded state.