Abstract:Taking EEG technology in the field of cognitive neuroscience as an example, this paper explores the cross path of knowledge intersection through time series analysis, and explores the topic of knowledge fusion through co-word analysis, so as to deeply analyzes intersection and fusion mechanism of knowledge in cognitive neuroscience and Humanities and Social Sciences, summarize the inherent law of cross integration of interdisciplinary knowledge. The study found that the interdisciplinary knowledge fusion can be achieved through certain technical means. Since 1970, EEG technology has contributed to the cross-fusion of cognitive neuroscience and 12 Humanities and Social Sciences, and the number of interdisciplinary subjects has steadily increased since 1990. In addition, interdisciplinary knowledge fusion generally occurs in the weak links of existing disciplinary research, and the application of EEG technology just makes up for the shortcomings of the traditional Humanities and Social Sciences on the individual cognitive level of decision-making motivation, emotional influence and attention distribution.