tIn this paper, a new nonparametric control chart based on the exponentially weighted moving average(EWMA) sign statistic is proposed using repetitive sampling. The control chart is proposed to effectivelydetect the process mean shift away from the target value without the distributional assumption on thequality characteristic. The proposed control chart is based on two pairs of upper and lower control limitshaving different control coefficients. The in-control and the out-of-control average run lengths of theproposed control chart are evaluated through the Monte Carlo simulation. The proposed control chart isshown to be more efficient than the existing EWMA sign control chart in terms of the average run length