Objective: To understand the students' neglect experiences before the age of 18, their perceived social support during their studies at the technical school, and their post-stress growth, and to preliminarily explore the relationships among the three variables. Methods: The Neglect Experience Questionnaire, Perceived Social Support Questionnaire, and Post-Stress Growth Questionnaire were used to test 940 students from a technical school in Shanxi Province. The measurement data were entered and statistically analyzed using SPSS 22.0. Results: (1) The rate of neglect experience among technical school students was 100%, with no significant differences in terms of gender, place of origin, and family type. (2) Males had significantly higher perceived social support than females, and students from intact families had significantly higher perceived social support than those from single-parent or remarried families. (3) There was a highly significant negative correlation between the students' recall of their neglect experiences before the age of 18 and their perceived social support, with a correlation coefficient of -0.331. Neglect was highly negatively correlated with post-stress growth, with a correlation coefficient of -0.180. Perceived social support was highly positively correlated with post-stress growth, with a correlation coefficient of 0.453. (4) Regression analysis found that neglect experiences before the age of 18 could have a total negative impact on post-stress growth. The impact on post-stress growth, considering perceived social support as a mediating factor, was -0.020. In the negative impact of neglect experiences on post-stress growth, the mediating effect of perceived social support accounted for 85% of the total effect. (5) Perceived social support could play a significant moderating role between neglect experiences and post-stress growth (c=0.034, p<0.01). Conclusion: The three variables are highly significantly related; neglect remotely affects the post-stress growth of technical school students through the mediating role of perceived social support, and the relationship between neglect and post-traumatic growth is moderated by social support. These findings provide data support for the mental health education and consultation work of technical schools and the construction of a four-level psychological network system.