Base on the theory of grey system, a new decision method, a grey relational decision model, is proposed and used to then multipurpose reservoir flood control operation.

• 摘要以灰色系统的灰关联决策为理论基础，针对洪水调度的特点，提出了一个切实可行的多目标水库洪水调度的灰关联决策模型。