合約言語治療主任的主要職責包括 – (a) 為患有發音、語言和溝通失調的兒童提供評估、輔助和治療服務，並跟進該兒童的康復進度； (b) 管理言語治療服務單位，並執行其行政工作； (c) 就健康服務的範疇協助策劃言語治療服務，包括研發評估工具； (d) 舉辦以言語治療為題的研討會和講座，並推行有關促進健康和專業教育的計劃；以及 (e) 參與研究、健康教育和其他專題項目。

A Contract Speech Therapist mainly assists in - (a) providing assessment, support and therapy to children with speech, language and communication disorders, and coordinating for the rehabilitation of clients; (b) taking charge of a speech therapy service unit and performing related administrative duties; (c) assisting in the planning of speech therapy service in the health service setting including the development of assessment tools; (d) giving talks and lectures on speech therapy, conducting related health promotion and professional education programmes; and (e) participating in research, health education and other relevant projects.