Remote associate test (RAT) is an important way to research problem-solving by insight. A large mount of researches about psychological and brain mechanisms were conducted since the RAT has been created. However, till now there is no laboratory study of Chinese Remote associate test (CRAT). The present study is to investigate traits of intuitive insight through a series of behavioral and brain imaging experiments by CRAT. Firstly, the referenced standards of CRAT laboratory researches were established through behavioral experiment 1 and 2. Furthermore, we found that intuitive insight is possibly a new kind of insight which is different from thinking (traditional) insight. The memorial characteristics of CRAT were investigated through experiment 3 and 4, the result showed that there was no difference between the memorial effects of intuitive and thinking insight. However, both of them were significantly higher than the memorial effect of no insight, which indicates that as the thinking insight, the intuitive insight is also different from general way of problem-solving. The experiment 5 and 6 were carried out to explore whether the recognition of insight and non-insight experience would be influenced bysuggestive information. The results found that if the items of thinking insight were suggested as easy, then they were inclined to be recognized as non-insight mistakenly; while those items of non-insight were suggested as difficult, then they were inclined to be recognized as insight, while the effect of suggestion to intuitive insight was not obvious. This further distinguished intuitive insight and thinking insight. The brain mechanism of spontaneous solving of CRAT items through experiment 7 and 8. Comparing with the CRAT items which answers are one pronunciation words, those items with polyphone answers activated occipital lobe (especially Conesus), parietal lobe and right prefrontal lobe. There were differences among brain activations of during problem solving of intuitive insight vs non-insight and intuitive insight vs thinking insight.