The invention provides an electric vehicle lock dustproof cover structure. The electric vehicle lock dustproof cover structure comprises a fixed sleeve ring, and a dustproof cover rotationally connected with the fixed sleeve ring through a rotating shaft; a lock cylinder shielding plate is arranged on the fixed sleeve ring, and is provided with a tension spring connected with the dustproof cover; a sealing pad is arranged on one side, towards the fixed sleeve ring, of the dustproof cover; the lock cylinder shielding plate is provided with a long hole opposite to a key hole of an electric vehicle lock; and an elastic stop piece is arranged on one side, towards the electric vehicle lock, of the lock cylinder shielding plate. The dustproof cover can be pressed on the fixed sleeve ring to achieve the first-grade protection effect, and the elastic stop piece on the lock cylinder shielding plate can be tightly bonded on the long hole to achieve the second-grade water and dust preventing effect, so that the use effect is good, and the after-sales repair cost on the electric vehicle market is reduced. A guide inclined surface is arranged in the long hole of the lock cylinder shielding plate for leading a key to smoothly insert in the key hole by the long hole.