姚锡光是晚清时期颇有建树的军事思想家。在中日甲午战争前后,他先后辅佐过李鸿章、李秉衡、张之洞等人,考察、研究和参与了一些重要的军事活动。其中,他的陆海协同、持久战等战略战术思想,在朝廷中许多人的认识水平之上,有些甚至足以影响甲午战争的进程。然而,由于他的军事思想大多没有在实践中得到应用,而逐渐被人们所忽视或淡忘。本文认为,研究姚锡光的军事思想,对正确总结甲午战争失败的教训,具有重要意义。 Yao Xiguang was a well-established military thinker in the late Qing period. Before and after the Sino-Japanese War of 1894, he assisted Li Hongzhang, Li Bingheng and Zhang Zhidong et al. In examining, studying and participating in some important military activities. Among them, his strategy of land and sea cooperation and protracted warfare was above the level of understanding of many in the court, and some of them were even enough to affect the course of the Sino-Japanese War. However, because most of his military thoughts were not applied in practice, they were gradually neglected or forgotten by people. This article argues that the study of Yao Xuguang’s military thinking is of great significance to the correct conclusion of the lessons of the failed Sino-Japanese War.