Abstract: Objective To understand and analyze the current situation of quality of mental life among post-00s vocational college students,and provide empirical evidence for promoting their physical and mental health. Methods From September to October 2021,a questionnaire survey was conducted among 900 students from Changsha Environmental Protection Vocational and Technical College and Hunan Sports Vocational and Technical College using the quality of mental life inventory（QOMLI）.SPSS 19.0 was used for statistical analysis. Results The overall self-rated score of quality of mental life among post-00s vocational college students was （84.95±11.05）points.Among the scores of each dimension,the value judgment score was （4.24±0.48）points,the happiness experience score was （3.83±0.69）points,the quality of life score was （3.70±0.65）points,the psychological growth score was （3.65±0.64）points,and the mental health score was （3.24±0.82）points.Multiple linear regression analysis showed that female college students had lower scores in quality of life and psychological growth（B=-0.175,-0.194,both P<0.01）,art students had lower scores in value judgment and mental health（B=-0.123,-0.697,both P<0.05）,rural students had lower scores in quality of life and happiness experience（B=-0.220,-0.142,both P<0.05）,students who served as class cadres had higher scores in value judgment and quality of life（B=0.098,0.152,both P<0.05）,students with left-behind experience had lower scores in mental health（B=-0.195,P<0.05）,students with romantic experience had higher scores in quality of life（B=0.137,P<0.05）,students with harmonious family atmosphere had higher scores in quality of life and happiness experience,while those with poor family atmosphere had lower scores（B=-0.149,-0.353,both P<0.05）; students with high monthly family income had higher scores in mental health（B=0.251,P<0.05）. Conclusion The quality of mental life of vocational college students who are relatively disadvantaged due to rural areas,multiple children,left-behind experience,low family income,and unharmonious family atmosphere deserves attention,and it is necessary to build a good social support system to improve their quality of mental life.

Key words: Post-00s vocational college students, Quality of mental life, Social support