This study was conducted in 2020 with 1330 middle school students in Guangzhou City，using the School Connection Scale，the Meaning of Life Questionnaire，the Adolescent Suicide Intention Scale，and the Basic Psychological Needs Scale to investigate and describe the data Statistical analysis，independent sample t-test，analysis of variance，regression analysis，correlation analysis and mediating effect test. The results show that：（1）school connection，sense of life and basic psychological needs can reduce young people’s suicidal will；（2）school connection improves adolescents’ sense of meaning in life，which in turn reduces suicidal will；（3）the more demanding they are for individuals with psychological needs，the improvement of their sense of meaning in life can reduce their suicidal will. The research has put forward a number of constructive suggestions on specific educational measures related to reducing suicidal will among young people.