A submarine lighting apparatus with adjustable light beam projection angle comprises a frame with an axis, several lighting units respectively pivoted with the frame around the axis, and a driving unit. The driving unit has a driving mechanism disposed on the frame and several connection assembly members respectively disposed between the driving mechanism and the lighting units. The driving mechanism may drive the the lighting units moving between a closed position and a developed position relative to the frame through the connection assembly members.一種可調光線投射角度的海中照明設備,包含一具有一軸線的機架、數該軸線分別與該機架樞接的照明單元,及一驅動單元,該驅動單元具有一設置於該機架的驅動機構,及數分別設置於該驅動機構與該等照明單元之間的連接組合體,該驅動機構經該等連接組合體驅使該等照明單元相對該機架在一靠攏位置與一展開位置之間移動。10‧‧‧機架14‧‧‧中板141‧‧‧開放導線槽144‧‧‧外擴開口段20‧‧‧照明單元26‧‧‧電纜線30‧‧‧驅動單元31‧‧‧驅動機構311‧‧‧馬達312‧‧‧螺桿313‧‧‧螺帽32‧‧‧連接組合體
