An electronic simulation candle comprises a simulation candle shell having a spiral fixed conductive plug at its bottom end, a power driven device, a flame piece swinger and a light source fixation base; the spiral fixed conductive plug is electrically connected to a circuit board provided within the simulation candle shell; the power driven device is electrically connected to the circuit board; the light source fixation base is disposed on the top end of the simulation candle shell; the flame piece swinger is disposed at the top end of the simulation candle shell, and the upper half of the flame piece swinger is a flame piece body which extends upward out from the top end of the simulation candle shell; a hollow tapered swinger is integrally disposed below the flame piece body, and the inside top end of the hollow tapered swinger is supported by a support rod.