【Objective】 To investigate the suicidal attitude, ideation of adolescent patients with depression, and to analyze their relationships with family environment, in order to provide evidence for the clinical treatment of adolesent depression and to reduce the suicide rate. 【Methods】 Totally 376 adolescents diagnosed with depression in Lu′an area from March 2019 to October 2021 were selected as the case group, and 376 normal adolescents were selected as the control group.The suicide attitude questionnaire (QSA), Beck scale for suicide ideation (BSS) and family environment scale (FES-CV) were used to investigate the suicide attitude, suicidal ideation and family environment of adolescents in two groups. Logistic regression analysis was used to analyze the influencing factors of suicide attitude and ideation of adolescent depression patients.Pearson correlation test was used to analyze the correlations between suicidal attitude, ideation and family environment of adolescent patients with depression. 【Results】 The scores of QSA and BSS in the case group were significantly higher than those in the control group (t=43.352, 96.527, P<0.001).The scores of intimacy, emotional expression, knowledge and entertainment in FES-CV of the case group were lower than those of the control group (t=25.487, 14.573, 22.160, 18.906), the score of contradiction was higher than that of the control group (t=30.311), and the differences were statistically significant (P<0.001).Logistic regression analysis showed that age of 20 - 25 years old (OR=2.016,2.261), severe illness (OR=2.115, 2.192), dwelling in city (OR=2.442, 2.557) were all risk factors for suicidal attitude and ideation in adolescent depression patients (P<0.05).The scores of QSA and BSS in the case group were negatively correlated with the scores of intimacy, emotional expression, knowledge and entertainment in FES-CV (QSA: r=-0.891,-0.933,-0.788,-0.698, BSS: r=-0.901,-0.832,-0.725,-0.637, P<0.05), but they were positively correlated with the score of contradiction (r=0.848, 0.883, P<0.05). 【Conclusions】 The suicidal attitude, ideation of adolescents with depression are higher than those of normal adolescents. Age, illness and growth environment are all influencing factors for suicidal attitudes and ideation in adolescent depression patients, of which the suicide attitude, ideation of patients are closely related to family environment.