This paper attempts to reduce the end effect resulting in a severe distortion of empirical mode ecomposition(EMD).A chaotic sequence was introduced into the EMD end extension,and the Volterra model was adopted to solve the problem of end effect in EMD.The data extension technology based on the Volterra model was described.The method makes the end extension more reasonable,which prevents the cubic spline curve from swinging and so an accurate EMD is realized.The analy ses of simulation signals show that this method can effectively control the end effect.