合約農林助理員主要職責為 (a) 巡邏郊野公園、特別地區及地質公園以執行保護、管理及執法職務；(b) 協助有關檢控及訴訟程序；(c) 協助管理郊野公園、特別地區及地質公園；(d) 協助推行教育與公眾活動及義工服務；(e) 協助處理文書工作及保存記錄；(f) 協助於郊野公園、特別地區及地質公園進行實地調查及自然護理的工作；以及 (g) 協助宣傳推廣活動。

The Contract Field Assistant is mainly deployed on (a) patrolling country parks, special areas and Geopark for law-enforcement, management and protection duties; (b) assisting in related legal proceedings; (c) assisting in the management and operation of country parks, special areas and Geopark; (d) arousing public awareness and assisting in educational and volunteer programmes; (e) assisting in clerical work and maintaining records; (f) assisting field survey and nature conservation works at country parks, special areas and Geopark; and (g) assisting in publicity events.