Typhoon disasters have influenced greatly the economic and social development of Ningde City and have restricted se-riously its economic sustainable development.Based on the study of the four typhoons in 2013 landing and influence of Ningde City and the combination of regional natural disaster system,the formation mechanism of the typhoon disaster in 2013 is ana-lyzed.The results showed that the main disaster factors are the strong wind,heavy rain and storm surge in the process of ty-phoon landing and influence.Long coastline,many islands and horn shaped coast feature became the typical enviro...