The aim of this study is to make the Quality of Life Instrument for Youths with Type 1 Diabetes available, considering that there are no specific instruments to evaluate the Health Related Quality of Life of Youths with type 1 Diabetes in Brazil. This instrument is derived from the American instrument "Diabetes Quality of Life for Youths". The methods recommended in literature were used for the adaptation to the Brazilian culture and validation. The instrument includes 50 items distributed in the domains: Satisfaction (17 items) Impact (22 items) and Concerns (11 items). Its use demonstrated that its psychometric properties were adequate for its use in our environment.