外交必须以强大的国力为后盾。曾国藩主要通过扩充军力以培植国力。李鸿章不仅继承了曾的这一思想 ,并把曾氏建立近代海军的设想扩展为海防思想 ,而且还把实力外交思想从单纯扩充军力发展到增强经济实力 ,形成了富强相因的思想。曾李为培植国力作了诸多努力 ,对中国的自强运动产生了深远的影响 Diplomacy must be backed by a strong national power. Zeng Guofan mainly through the expansion of military power to cultivate national strength. Li Hung-chang inherited not only the thought he had made but also Zeng’s idea of ​​establishing the modern navy as Haifeng Thought. He also expanded the concept of strength diplomacy from purely expanding military power to enhancing economic strength, thus forming a prosperous and powerful thought. Li Zeng made a lot of efforts to cultivate the national power and had a profound impact on China’s self-strengthening movement