本文认为,美国在日俄战争期间的东北亚政策仍然是坚持“门户开放”,但是在实现目标的手段上有了微妙的变化:着重在东北亚推动和构建“均势”格局——挺日、拒俄,建立均势,而不再是前一时期的“追随”欧洲列强,嗣机插足的政策。 This article argues that the policy of the Northeast Asian countries during the Russo-Japanese War was still “opening the door” to the United States. However, there were subtle changes in the means of achieving the goal: focusing on promoting and building a “balance of power” pattern in Northeast Asia - Reject Russia and establish a balance of power, instead of the policy of “following” the European powers and hegemony in the previous period.