Grit, as a positive psychological quality, has garnered widespread attention since its introduction by Duckworth et al. in 2007 and has significantly impacted educational policy-making in Western countries. Despite its growing importance, there has been few Chinese systematic reviews regarding girt. This paper reveals the development trends, summarizes its measurement, neural foundations and influencing factors, and summarizes the mechanisms by which girt affects achievement. Furthermore, this paper elaborates on existing intervention strategies to enhance girt quality. Finally, this paper prospects the future development directions of girt, including in-depth research into its internal structure, mechanisms predicting achievement, and the development of effective intervention programs.