A methodology for evaluating the capability of nuclear power plant for emergency response is is proposed here. It is based on the regular emergency preparedness of nuclear power plant, the routine regulation activity and oversight process of nuclear safety authority and the key planning elements and their characteristics of capability for emergency response. The methodology includes performance indictor for quantitative evaluation, inspection finding for qualitative evaluation and the overall evaluation with the help from significance determination process. The methodology is expected to help to disclose the witness or problems in emergency response capability, help to assign responsibility and resources appropriately and help the licensee and the authority to arrange response action matrix adequately.