支配性策略又称为优势策略（Dominant Strategy）。在一个博弈当中，假设你能选择的策略为，无论对手采取什么策略，都可以使你得到比采取其他策略更好的结果，那么，策略就是你的优势策略。

或者，使用混合策略，以使用某些策略，而结果比你没使用的任何策略为好，这也是支配性策略。

In game theory, strategic dominance (commonly called simply dominance) occurs when one strategy is better than another strategy for one player, no matter how that player's opponents may play. Many simple games can be solved using dominance. The opposite, intransitivity, occurs in games where one strategy may be better or worse than another strategy for one player, depending on how the player's opponents may play.