The breaking ups had a special experience about “LOVE”. They had a specific mood and lasted for a long time after the end of the romantic relationship. Also, they would have a priming emotion when they met something related “LOVE” immediately.The present paper would like to research two points about them: the breaking-up mood and the breaking-up priming emotion. The research materials contained two parts: emotion priming videos and the questionaire of risk choices in specific area.The video (1 min 55 sec, mandarin, sound) were chosen according to the standard method of Gross, and standardized by other 56 participants. The questionaire of risk choices in specific area used Likert-5 and contained four parts: entertainment risk, healthy risk, social risk and economy risk. In this present study, 52 participants (16 males, 36 females, mean age = 23) were enrolled. The current study used the design of 2(break-up group, control group) ×2(emotion priming, no emotion priming) to explore.There were two groups: the people who had experienced the end of the romantic relationship in 24 months were assigned to the breaking ups group; the people who had no romantic relationship and were single until now would be assigned to the control group. In the between-group design, these participants were divided into two experimental conditions at random: emotion priming condition, no emotion priming condition. The breaking ups were asked to finish a “self-rating emotion scale”,and then told that they would experience a test about the end of the relationship.The control group were also asked to complete the scale, but only told that they would see a test about love. The emotion priming group would see the movie first, and finish another “emotion scale”.Then, they would fill in the questionaire. The non-emotion priming group would fill in the questionaire without seeing the movie. The results of the experiment showed that: the group of emotion priming had significantly higher scores in every four domains’ risk-taking behaviour than that of no priming emotion. The difference of two groups in economical area was statistically significant, F（1,48）=0.17, p < .05. That of in healthy area was statistically significant, F（1,48）=0.21, p < .05. That of social area was statistically significant, F（1,48）=2.72, p < .05 .and that of recreational area was statistically significant, F（1,48）=2.12, p < .05. Meanwhile, the risk-taking behaviour of the break-up people was markedly lower in social (F（1,48）=8.48，p < .05)and recreational (F（1, 48）=4.06，p < .05)domains than the control group. There was no significantly difference between the breaking ups and the control group in economical area and the healthy area. There was no statistical different in interaction effect. This current paper studied the feature of risk choice which is influenced by one condition called emotion priming (incidental affect) and that by the other condition called lovelorn-self (integral affect).The present results suggested that the end of the romantic relationship could induce people’s negative emotion, and influence their risk-taking behaviour. The breaking ups without emotion priming would avoid the risk-taking behaviour. That may because of worrying about the hurts.