There is a black box for generation of ideas. The work aims to design a set of card-based design tool to help users activate long-distance concepts and enhance the creativity of ideas. First, participants were invited to summarize the idea generation techniques screened in this work into short questions or suggestions; then items that did not meet the requirements were scored out by rating; finally, the card sorting method was used to divide the final reserved questions or suggestions into four categories:combination, provocation, iteration and enumeration, and the card-based design tool was generated according to this classification. In order to explore the effectiveness of the design and the best use situation, the orthogonal experiment method was adopted. In addition, to observe the impact of the scheme on the thinking process, the brain waves, galvanic skin response and facial expression data of the subjects in the experiment were collected. Both using this design (R=0.275) and borrowing ideas from others (R=0.242) could improve the creativity of ideas, and the impact of the design was more significant. This design can not only enhance individual creativity, but also apply to team innovation.