ABSTRACT Purpose: To investigate participation, and functionality of children and adolescents with speech disorders using the International Classification of Functioning, Disability and Health (ICF). Method: Descriptive and analytical research of qualitative and quantitative approach. The sample was composed of 30 participants with speech disorders and 30 with typical speech development. For data collection, it was conducted semi-structured interviews with the participants, medical record review, observation of speech aspects’ participants, and analyzed study of medical records. The collected data were used to qualify the framework codes. The Mann-Whitney Test was used for comparison between groups, and thematic content analysis for the interviews. Results: Participants with speech disorders reported more difficulties than the participants with typical speech development. Speech disorders significantly impacted on the Body Functions (articulation and fluency), Activities and Participation (conversation, relationships, carrying out the routine and handling of stress) and Environmental Factors (attitudes of family, friends and acquaintances). Conclusion: The results show the impact of speech disorders and their social consequences for these children and adolescents. The ICF allowed us to comprehend health in all its complexity and integrality, making possible to plan strategies to soften the disorders impact in an individual and collective perspective. Then, ICF can be used, in the future, for elaboration of public policies and actions that will improve the quality of life and promote the health of this population.