Abstract: Based on the grey relational analysis method, the correlation relationship between the disaster area of the main agrometeorological disasters (including drought, flood, wind-hail and frost) and total grain yield from 1988 to 2007 in Liaoning province were analyzed. The results show that the drought has an increasing tendency in terms of the covered disaster areas, while the other disasters are a decreasing tendency. The wind-hail and flood disasters have the decreasing tendency in terms of the affected disaster areas, while the other disasters are the increasing tendency. The effects of drought on agricultural production in Liaoning province is the most obvious, followed by flood, frost and wind-hail.