Abstract: According to the observed meteorological data in 2022 and the historical data from 2467 meteorological stations in China, the agrometeorological evaluation index, the climate suitability degree model and agrometeorological disaster index model were used to evaluate the agrometeorological effects on yield of major autumn harvest crops, such as corn, single rice, later rice, soybean and cotton. The results showed that: the light conditions and thermal conditions were sufficient for crop growth and development in the growing season. The precipitation and soil water conditions were non-uniform distribution in time and space, which restricted the yield increase of corn, rice, soybean and other crops. The impact of low temperature, sunless, continuous rain, rainstorm and flood disasters during the main growth period was light, while the meteorological conditions were favorable for crop development growth and yield. The comprehensive intensity of high temperature in summer in the Yangtze River basin reached the highest level since 1961. The single rice during filling maturation suffered heat injury, while the corn suffered continuous drought in summer and autumn. The rainstorm disasters occurred frequently especially Jilin, Liaoning and Shandong provinces which caused the crops to heavy losses, and some crops were out of harvest.

Key words: Autumn harvest crops, Climate evaluation, Agrometeorological disaster