關鍵基礎設施系統是維護社會經濟及民生安全的重要元素之一,是一個由許多不同的基礎設施系統組織而成巨大網絡,他們透過生產及提供不同的服務以便利日常生活與維持社會運作,若這些基礎設施系統遭受破壞將會對社會產生嚴重的影響,其中又屬電力系統的影響最為廣泛,故本研究以電力系統作為探討之重點。巨大的天然災害可能造成人類生命的危害,財產的損失,甚至可能對社會經濟或國家安全造成危害。近年來世界各地的天然災害頻頻發生,其中地震與颱洪災害的發生最為普遍。台灣也因為地理位置與氣候特性,經常遭受地震與洪颱的侵擾,對於地震颱洪的防救災工作實屬重要之課題。本研究即利用現有電力系統資料以桃園地區為例製作模擬電力網絡系統並針對鄰近的震源所引發之地震災害,使用蒙地卡羅模擬法、最短路徑演算法等方法,進行模擬地震事件之損害評估、電力損失及人口影響。Critical infrastructure systems including electric power, water distribution, transportation and telecommunications are important elements in maintaining human economic activities and country development.In critical infrastucture system, electrical power transmission system is the most important element of the others.In recent years, the electrical power transmission systems have been stressed by significant natural hazards and human errors leading to malfunction. The seismic disasters are happened frequently in Taiwan. Therefore, seismic risk assessment of the electrical power transmission system is very important.This study mainly investigates the effect of seismic disruptions upon the performance of real electric power networks in Taoyaun, using the shortest shortest path algorithms and Monte Carlo simulation.