The characteristic of propaganda slogans is to achieve the purpose of propaganda and agitation. Slogans and slogans use popular words to interpret important concepts, convey the latest information, and have concise sentences. Short, few words, accurate expression. The format of publicity slogans: neat sentence patterns, vivid rhetoric, flexible use of simile, metaphor, analogy, duality, parallelism, repetition and other rhetorical devices.

The role of propaganda slogans is to facilitate "building momentum" and form an atmosphere, and it is also easy to play the role of "safety notice". As early as the 1930s, the Red Army wrote a large number of propaganda slogans on the walls of houses in various base areas, many of which still exist today and become red cultural relics. Slogans reached the extreme in the Cultural Revolution.