助理社會工作主任的主要職責是-
(a) 在部門內各服務單位，例如綜合家庭服務中心、醫務社會服務單位、感化及社會服務令辦事處等，提供社會福利服務，以及管理或協助管理社會福利辦事處／院舍／中心；
(b) 在地區及服務科協助規劃和發展各項社會福利服務，以及統籌和監察社會福利服務；
(c) 協助處理非政府機構所提出的申請、監察其服務表現，以及向該等非政府機構提供所需支援；
(d) 處理有關社會福利服務／院舍的各項牌照計劃下的法定職務及合約管理事宜；
(e) 協助規劃、推行、管理為部門及非政府機構員工而設的培訓課程；以及
(f) 協助規劃、推行、監督部門內部及與社會福利界相關的資訊科技項目。
（註：助理社會工作主任須擔任戶外工作及執行緊急職務；及或須輪班當值、隨時候召或上班候命工作。）

An Assistant Social Work Officer is mainly deployed on –
(a) providing social welfare services in various departmental services units, such as integrated family service centres, medical social services units, probation and community service orders offices, etc. as well as administering or assisting in the administration of a social welfare office / institution / centre;
(b) assisting in planning and development as well as coordination and monitoring of various social welfare services in the districts and service branches;
(c) assisting in processing applications from non-governmental organisations, monitoring their performance and rendering necessary support to them;
(d) handling matters related to enforcement of statutory duties under various licences schemes and contract management of social welfare services / institutions;
(e) assisting in planning, implementation and administration of training programmes for staff of the department and non-governmental organisations; and
(f) assisting in planning, implementation and supervision of information technology projects within the department and with the social welfare sector.
(Note: An Assistant Social Work Officer is required to undertake outdoor work and emergency duties; and may be required to perform shift, on-call or stand-by duties.)