On this day, 82 years ago, July 5, 1943 (June 4, 1943 in the lunar calendar), Wang Jiaxiang first proposed "Mao Zedong Thought". Wang Jiaxiang, who gave a report to cadres of the Eighth Route Army On July 5, 1943, Wang Jiaxiang published "The Communist Party of China and the Road to National Liberation of China" to commemorate the 22nd anniversary of the founding of the Communist Party and the 6th anniversary of the Anti-Japanese War. In this article, Wang Jiaxiang took the lead in proposing the concept of "Mao Zedong Thought." Wang Jiaxiang believed that the 22-year history of the Communist Party of China is a history of struggle for the liberation of China's nation and a history of seeking, determining and enriching the correct path of the China nation. The correct path in the entire process of China nation is the path pointed out by Mao Zedong in his works or practice. Mao Zedong Thought is Marxism-Leninism in China, Bolsevism in China and Communism in China. A political party should have a revolutionary theory, and the Communist Party should have a revolutionary theory that combines Marxism-Leninism with the country's revolutionary experience and reality. In China, it is Mao Zedong Thought. Without its leadership, the revolutionary movement cannot win. Comment: A political party needs a correct and great idea to lead.