Introduction: The aim of this study was to evaluate and describe the three-stage triage method used in a child and adolescent psychiatry outpatient clinic. Method: The study investigated the new allocation process of 1482 children and adolescents who were assessed using this triage system for the duration of one year, in the year 2005. Data of 1423 children and adolescents who presented in 2003 regarding the waiting time for the first appointment and the rate of non-attendance at the first appointment were used for the comparison. In triage system, new patients presenting to the outpatient clinic in the morning four days a week were assessed by a three-stage procedure: An initial Strengths and Difficulties Questionnaire screening and a structured interview administered by an intern was then followed by a clinical interview. Results: Of the 1482 children and adolescents who presented to the outpatient clinic during the study period, 1291 were given further appointments. Among patients who presented in 2005, the 207 non-attendant patients were significantly more likely to have longer waiting times than the 1084 attendant patients. When compared to year 2003, it was found that there was a significant decrease in the mean waiting time for the first appointment and the rate of non-attendance at the first appointment among patients who presented in 2005. Conc lu si on: The triage procedure used in this study may constitute a model for developing countries with limited health care resources.