Based on the conventional observation data from 542 stations in China in 1960-2008, evaluation indicators are selected from the aspect of disaster causes and the risk assessment of meteorological index system is built. The risks of low temperature, rain/snow and freezing disaster are assessed and zoned in China by using the comprehensive hazardous index which is built on the assessment philosophy of different intensity frequencies. The result shows that most parts of China are in the low risk regions. The high risk areas are mainly located in Heilongjiang, Jilin, the east of Liaoning, the east of Inner Mongolia, the north of Xinjiang, the south of Qinghai, the northeast of Tibet, and the south of Gansu. Much of South China is located in the areas with the lowest risks, and some relatively high risk areas in South China are found in central and southern part of Sichuan, the northeast of Yunnan, the west of Guizhou, the east of Hunan, the south of Anhui, the north of Jiangxi, and the north of Henan. The distribution of the high risk areas is closely related to the topography and latitudes of these regions.