According to the statistical data of lightning disasters of 21 cities in Guangdong province from 1996 to 2010, firstly lightning disaster frequency, economic vulnerability and population vulnerability exposed to lightning disaster are selected as evaluation indexes of lightning disasters. Based on detailed survey of lightning disasters in Guangdong Province, a comprehensive evaluation method of lightning vulnerability is made and the preliminary vulnerability evaluation indexes of thunderstorm disasters is put forward. Then, the vulnerability evaluation indexes of lightning disasters are classified with the statistical nethod of classification used in statistical analysis of meteorology. And the comprehensive vulnerability evaluation indexes of these 21 cities are also graded. Finally, vulnerability zoning of lightning disasters in Guangdong province is made that 4 cities like Guangzhou city belong to the maximal damageable area, 7 cities like Zhongshan city belong to the high damageable area, 6 cities like Zhuhai city belong to the medium damageable area, 4 cities like Heyuan city belong to the low damageable area.