In this paper, i study above two issues and gain some results as follows : 1 . under population follow normal distribution hypothesis, designing combine median-range adaptive control charts with variable sampling interval, variable sample size and variable control limit . it may be regarded as previously median-range extension 在假设总体服从正态分布的条件下,设计了抽样区间,样本容量和控制限都变化的全变化参数的中位值-极差联合控制图。它是以前的中位值-极差联合动态控制图的推广。