During the Westernization Movement, Zheng set up industry and advocated "commercial war". He believes that developing business can enrich the country, and the rich country can resist aggression, thus achieving the goal of saving the country. Although Zhang Zhidong advocates that "old learning is the body and new learning is the use", he believes that developing industry can strengthen the country and enrich the people. He actively established steel mills, arsenals and organized railways. After the Sino-Japanese War of 1894-1895, national capitalists and patriots set up factories to save the country. Zhang Jian founded cotton mills, flour mills and other enterprises and schools in an attempt to achieve the goal of subsidizing education with industrial income, improving industry with education and saving the country with industrial development. He believes that industry and education are the "foundation of prosperity" of the country. During the Revolution of 1911, newspapers and periodicals competed to publicize "industry saving the country" and put forward five "avenues" for the country to revitalize industry: perfecting various administrative institutions, adjusting unified monetary measurement, dredging commodity circulation channels, recruiting talents to return to the industrial sector, and formulating special protection and reward laws and regulations; Specific measures such as expanding export trade and implementing tariff protection policy are put forward, thus forming a relatively complete theory of "saving the country through industry". Around the May 4th Movement, the theory of "saving the country by industry" prevailed. National capitalists vigorously advocate domestic products, resist foreign economic plunder and safeguard national interests. Their slogan is: "Revitalize industry and preserve rights." Philosopher Zhang Zeng advocated "saving the country through industry". He believes that since there is poverty in China, developing industry has become the only requirement; Under the requirement of developing industry, capitalism and machine production are increasing day by day, forming an irresistible historical trend; There is only one way to save China, that is, to enhance national strength, and to enhance national strength, it is necessary to develop industry; Socialism, productism, nationalism, anarchism, etc. It doesn't work in China. Modern industrialists such as Zhang Jian and Zhang advocated saving the country by industry with different motives. The former reflects the progressive requirements of industrialists and enlightened people to develop national capitalism and save the country through self-improvement. They set up industry, which played a certain role in developing social productive forces, but this proposition failed to grasp the main contradiction of China society at that time and could not play a greater role. The latter is an excuse to oppose the spread of Marxism in China and China's revolution and socialist road.