幽默是一种具有制笑功能的语言现象。本文从认知语言学角度,运用Fauconnier和Turner提出的概念整合理论来解释日语幽默的在线生成过程。全文运用概念整合理论对日语幽默案例进行实证分析,阐明幽默的生成是认知主体在大脑中运用心智空间,通过心理认知过程的组合、完善和拓展,在新创结构中整合加工形成的过程,证明概念整合理论对日语幽默在 Humor is a language phenomenon with the function of making laughter. In this paper, from the perspective of cognitive linguistics, we use the concept integration theory proposed by Fauconnier and Turner to explain the online generation of Japanese humor. The full text uses concept integration theory to make an empirical analysis of Japanese humorous cases, and illustrates that the generation of humor is the process by which the cognitive subject uses the mental space in the brain, through the combination of psychological cognitive process, perfection and expansion, , Proves that the theory of conceptual integration is humorous in Japanese