[Research purpose]The identification and prediction of the development and relatedness of disruptive technologies is condu-cive to the timely development of technological layout and the formation of strategic advantages in industrial competition.[Research method]Taking technology patent abstracts as data object,a path of technology association opportunity discovery combining SAO struc-ture extraction,LDA topic analysis and link prediction is proposed,and brain-computer interface(BCI)is used as an example to verify the method.[Research conclusion]BCI has broad relevance opportunities in its own technology iteration,medical and health fields,ex-tended application fields and multi-modal integrated control system fields.The comparison and evaluation with multi-source technical re-ports such as papers,patents,projects and news reports demonstrate the feasibility and effectiveness of this path.
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