Abstract: Abstract: To Hezhou for example, use their ground for nearly 20 years of climate data and weather observation stations Hezhou eight-step Zone Plant Protection Station of rice pests and diseases the corresponding year data, related by regression analysis, statistical methods to arrive a few closely related to climate factors, analysis of their change on rice pests and diseases over the years, the occurrence and development trend. The results showed that: in winter minimum temperatures and other major 6 climatic factors affect the development trend of Hezhou of rice diseases and insect pests, and the 6 changes in climatic factors are conducive to the development of rice diseases and insect pests increased, that is, as climate change, Hezhou rice diseases and insect pests are a serious trend of increasing.