Stereotype threat spillover is kind of a situation predicament in that individuals dealing with negative stereotype are in a state of being ego depletion. It then results in the increased difficulties in any subsequent tasks requiring the amount of executive control. Previous studies on the negative effects of stereotype threat have focused on the stereotyped field,but they have ignored the fact that this negative impact lingers on non-stereotyped fields. In other words,the stereotype threat spillover is the lingering effects of the stereotype threat. However,it has been indicated this phenomenon occurs due to the underestimation in the negative effects of stereotype threat. The understanding of stereotype threat spillover and its relevant interventions would be necessary. Here,we first present the relationship between stereotype threat and stereotype threat spillover in terms of the situation predicament,negative effects and psychological mechanisms. Then the theoretical explanations have been discussed by the stress and coping model of stereotype threat. The relevant research in both behaviors and academics,and the potential interventions from the perspectives of societies which include threat reappraisal and mindfulness meditation,and individuals which include reducing stereotyped content in the media,exposure to ingroup positive role models and changes to the threaten environment,has been discussed as well. At the end,this paper suggests much more focus would be considered in the future research to enhance the reliability of research,including expansion of its field,increased diversities of participants,refined interventions,and the combination with more cognitive neural techniques to name a few.