The invention discloses a foldable reverse tricycle which comprises a main support. The front end of the main support is provided with a T-shaped support, and a bearing frame is further fixed to the front end of the main support. Under the driving of a driving mechanism, a headstock support pipe rotates relative to the bearing frame around a rotating shaft, so that the foldable reverse tricycle is switched between an unfolded state and a folded state. The driving mechanism is of a connecting rod structure and comprises a first rod and a second rod, a locking plate is further slidably arranged on the first rod, the upper end of the locking plate is provided with a pull ring, bent plates on the two sides are provided with shoulders, the second rod is provided with notches, and when the foldable reverse tricycle is in the unfolded state, the shoulders of the locking plate extend into the notches formed in the second rod. The foldable reverse tricycle has the advantages that a folding mechanism and a locking mechanism are safe and reliable, the foldable reverse tricycle can be quickly switched between the folded state and the unfolded state, and the foldable reverse tricycle is suitable for being widely popularized.