Due to rising standard of life in Taiwan, power consumption rose dramatically, power systems network are becoming complicated, thus serious impact increasingly. But for many Taipower on-site staffs, lack of blackout related experience and emergency plan. Therefore it is necessary to understand the weaknesses of Taipower systems and the cause and affect of accidental accidents over the years, to develop blackout emergency plan and minimum the loss. In July 29, 1999, Taiwan had occurred unprecedented collapse of the power transmission system in the midnight, caused the country blackouts, outages four-fifths of users in Taiwan, this was the biggest power rationing during the past 50 years. Then 921 Chichi earthquakes, Chung-Liao substation led to the dumping destroyed, caused more than two weeks of power rationing in northern Taiwan. Such comprehensive blackout in the high-tech industries economic pattern¡¦s country like ours, the losses caused of the economic impact is goes without saying. This Study is base on the ¡§Crisis Management¡¨ theory to explore the emergency response while the power outage occurs, and how to deal with the crisis issue. This thesis through data collected, literature review and in-depth interview results, analysis Taipower internal contingency handling mechanism through unpredicted natural disasters or artificial improper operation, intend for Taipower reference to construct a contingency mechanism for unexpected incident which triggered off a blackout accident.