With the continuous development of society and the continuous improvement of people's educational level, the words or sentences used in speaking have become shorter and shorter, but the meanings they want to express have become more and more complicated. Especially when deliver their emotions, the listener often does not realize the emotions that the speaker wants to deliver. If you want to accurately understand the feelings that the speaker wants to convey, you must combine the specific context. Because only the context can help the listener to more accurately understand the feelings that the speaker wants to express in future communication. Color can also try to avoid mistakes and misunderstandings that should not occur, so the text is based on Firth’s context graphs from the perspective of the listener to study the impact of communicative context on polysyllable derogatory words.