The present invention discloses a new energy vehicle fast charging device. The device comprises a charging pile body composed of a transmission portion and a charging portion which is fixed at the endsurface of the bottom of the right side of the transmission portion; a first sliding groove is formed in the end surface of the bottom of the left side of the transmission portion; a first screw rodis arranged in the first sliding groove; the right side end of the first screw rod is connected with a first motor; the first screw rod is in screw-thread fit connection with a first sliding block; acharging gun head is arranged below the first sliding block; a plugging-connection groove is formed in the end surface of the left side of the charging portion, wherein the left side of the charging portion is corresponding to the right side of the charging gun head; a circular sliding groove located at the right side of the plugging-connection groove is formed in the charging portion; a first transmission cavity located at the back side of the circular sliding groove is formed in the charging portion; a partition plate is arranged between the first transmission cavity and the circular slidinggroove; and a second transmission cavity located at the right side of the first sliding groove is formed in the transmission portion. The new energy vehicle fast charging device of the invention hasthe advantages of simple structure and convenient operation. According to the new energy vehicle fast charging device of the invention, plugging work is realized under automatic control, and the exposing and hiding work of electric jacks is automatically controlled, and therefore, the overall safety of a charging pile can be improved.