The sinking of Sewol happened on April 16，2014 in South Korea，which gave a great sorrow of losing relatives to South Korean society in the year of 2014. Just in Feb.2013，when Park Geun-hye was in office，the new government proposed that the national security should be the first thing in national policy. However，just turning a year，with the tragedy and the poorly response，which enraged victims’ relatives and the publics，the government in itself in deep trouble of popular discontent. Based on relevant government report，media report，social and internet opinion，the paper observes the action and execution of South Korean government in dealing with the crisis，and makes a brief introduction about its ability of crisis management and interactions between government and society.