We explore the influence of media reports of suicides on the mental health of adolescents, using the suicide of one actor in May 2005 to identify factors that might make participants vulnerable to such reports. We conducted survey research using questionnaires and a cluster sampling method. A total of 2,533 Taipei students from the first year of junior high to the third year of senior high school completed the questionnaire. Results revealed: (1) 5.6% to 26.3% of adolescents rated themselves as negatively influenced by the media suicide reports on three dimensions of mental health, including depressed and anxious mood, suicidal thoughts, and negative attitudes toward life; (2) 5% to 9% of adolescents reported an increase of suicide ideation and attempts resulting from media reports of suicide; (3) multiple regression analyses identified factors relating to such vulnerability. These included attendance at a vocational high school, having less educated parents, the degree of familiarity with this actor, extent of exposure to media suicide reports, having a previous history of suicidal ideation and attempts, greater life stress, less social support, and negative mood status and attitude toward life; (4) logistic regression analyses revealed the factors most related to suicidal ideations or attempts following such reports were: being male, having a negative attitude toward life, greater life stress, and a history of suicidal ideation and suicide attempts in the recent year. These results showed that intensive reporting of suicides by the media negatively influenced the mental health of adolescents, increasing suicide ideation and attempts. Educational and counseling professionals need to provide greater emotional support for students in these high-risk groups during periods of media coverage of suicides.