On 11th March 2011，a M9.1 earthquake happened in the northeast of Japan，which is the biggest earthquake on Japanese history.The big earthquake created a violent tsunami，which led to the east coast of Japan serious damage and took lives away from over 20000 people.It is worse that the earthquake and tsunami caused leakage of nuclear from Fukushima 1st Nuclear Power Plant，and the secondary disasters and its bad influence even went beyond the calamity resulted by the earthquake and tsunami.The most terrible disaster in Japanese postwar history will certainly bring about a great influence on Japan’s economy and even the world’s economy.Overall，if the nuclear leakage could be controlled，it will produce a big but limited effect on Japan’s economy in the short term.In addition，it will also create limited influence to both the world’s economy and China’s economy，but the long-term effects on Japan’s economic development could not be underestimated.