Anti-expectation category is one of the important concepts in semantic-pragmatic interface research. It not only reflects the truth-value sematic relationship and conditions of the objective world, but also reflects the subjective understanding or attitude of both parties in communication. This article is mainly based on the theory of information structure to classify anti-expectation adverbs in Chinese and Korean. It is mainly divided into eight categories: unexpected surprise type, unexpected dissatisfaction type, fact awakening type, fact correction type, typical turning type and polarity turning type. The semantics of each type of Chinese and Korean are compared and analyzed, and the similarities and differences of anti-expectation adverbs in Chinese and Korean are understood through preliminary comparisons, and they are analyzed and explained by information structure theory. Through preliminary analysis, we can see that there is no one-to-one correspondence between Chinese and Korean anti-expectation adverbs, and there are differences in information intensity and subjectivity.