In the early days of People’s Republic of China, Mao Zedong attached great importance to dealing with the relationship with the masses. He put forward numerous new viewpoints: Addressing the relationship between the Party and the masses is of great significance to the Party and the country; the focus is to emphasize and rely on the masses; the key point is to contact the masses; the fundamental point is to benefit the masses; In dealing with the relationship between the Party and the masses, we should do a good job in publicity and education to the masses, make good use of the methods of criticism and self-criticism, and build a good team of Party members and cadres. The study of these thoughts can provide enlightenment and reference for the Party’s work with the masses under the new situation and building a harmonious relationship between the Party and the masses in the new period.