Based on the analysis of climatic characteristics of precipitation in flood season of Liaoning, the circulation characteristics infulence on precipitation in flood season Liaoning are analyzed.

• 摘要在分析辽宁汛期降水的气候特征基础上，着重对影响辽宁汛期降水的环流特征进行了分析，结果表明：(1)近44年辽宁汛期降水呈下降趋势并出现显著的年际、年代际变化特征。