The utility model provides an uninterrupted power supply fills electric pile, which comprises a charging pile body, a serial communication port, it includes the box to fill the electric pile body, the lower box and the rifle that charges, it includes man -machine interface to go up the box, the box includes commercial power interface down, battery and power control circuit, the rifle that charges passes through power control circuit and the commercial power interface and the battery of box feed through down, man -machine interface includes input keyboard, the display, RFID read write line and contact card reader, user's savings card or credit card information are gathered through RFID read write line or contact card reader, the quantity of charging of user's input is gathered to number of pass keyboard dish, the amount of money and card encrypted message, send for central processing module, pass through the display demonstration with the settlement information that central processing module sent. The utility model provides an electric vehicle uninterrupted power supply to charging is guaranteed to charging when uninterrupted power supply fills electric pile can effectively solve power supply abnormity to reach that convenience of customers uses, energy -concerving and environment -protective mesh.