Abstract: In recent years，under impact of climate change，agriculture meteorological disasters occurred frequently，and especially frequent extreme climate change was a serious threat to safety of agricultural production in China.Climate change also has a serious impact on plant diseases and insect pests.Global warming has increased risk of agricultural plant diseases and insect pests，increased harm scope of plant diseases and insect pests，harm degree，increased the prevention and control work difficulty of plant diseases and insect pests.Climate change impact on China′s agricultural meteorological disasters and plant diseases and insect pests were mainly analyzed and studied.