The invention discloses an extra-high voltage AD/DC parallel-series connection background disturbance control estimation method for a regional power grid. The method comprises the following steps of setting a disturbance control estimation standard under time dimension of the regional power grid, wherein the disturbance control estimation standard comprises definition, expressions and physical significances of indexes such as reportable distance, standby share group and disturbance rates under different times; dividing a disturbance recovery level of a control region according to a disturbance control estimation index of each control region; assessing each control region according to the disturbance recovery level of the control region, wherein an assessment result comprises electric quantity punishment and electric quantity return; and calculating adjustment quantity for an accident of a next quarter with regard to each quarter according to the disturbance control estimation index. The method has the advantages that the disturbance recovery level of the control region is calculated by designing the estimation index, the electric quantity punishment and return is further carried out on the control region, so that the recovery capability of the control region on disturbance under the time dimension and the execution situation of the control region on a network debugging ACE instruction are estimated.