A foldable vehicle includes head and chassis assemblies hinged together, and a foldable vehicle lock. The head assembly includes upper and lower heads hinged together. The chassis assembly includes front and rear chassis hinged together. A foldable linkage folds and unfolds the foldable vehicle. The foldable linkage is hinged with the head assembly, the front and rear chassis such that the head assembly, the front and rear chassis are driven to conduct relative movement to perform the corresponding foldable and unfoldable operations. The foldable vehicle lock includes a head locking assembly to lock the upper head with the lower head, a chassis locking assembly to lock the front chassis with the rear chassis, and a whole vehicle locking assembly to lock the head assembly with the chassis assembly. The chassis and whole vehicle locking assemblies are controlled synchronously by a linkage controller.