The prevalence of mental illness was increasing every year, yet many cases were not treated by professional treatment. Mental health literacy is one of factors in which influence people’s intention to seek professional treatment. This study aimed to find out the knowledge and public’s perception about mental illness (depression & schizophrenia case). The participants of this study was 89 people (N=89; Men: 32, Women: 57), aged 15-38 years old. The method of this study was online survey that consisted of two vignettes about depression and schizophrenia case that were adapated from Angermeyer et al. (2005). Participant’s responses on vignette described public’s knowledge and perception, help-seeking references, and stigma. Descriptive statistics and thematic analysis were used to analyze data. The result showed only 21% of participants recognized vignette as depression, eventhough 81% of them ever met family/friends with similar symptoms on vignette. On the other hand, Only 12% of participants recognized vignette as schizophrenia, eventhough 45% of them ever met family/friend with similar symptoms on vignette. Only 25% of participants referred family/friend with schizophrenia symptoms to profesional treatment, the rest was reffered to informal treatment such as local healer. The theme of perception, help-seeking reference and stigma that were analyzed by thematic analysis will be disscussed later.