Abstract: Abstract：A method on multi-objective scheduling optimization of flood control systems is developed based
on the three basic laws of dialectics and its mathematical theorem of variable sets. It has three features: the
theory basics are the dialectics and its mathematical theorem; the basic mode is the standard interval of
multi-level scheduling optimization of flood control; the level of decision-making plans is identified one by
one. In this method, a decision-making plan that has a relatively small (1.5 or so) level characteristic value is
identified as the satisfactory one, and otherwise, a new scheduling scheme need to be created for
identification and optimization next time. The developed method is rigorous and of novel concept and
simple calculation, thus having broad application potential.