The series was announced by the BBC in 2013 with the working title Oceans, but the title was later changed to Blue Planet II as it revealed on 19 February 2017.
该系列纪录片于2013年由英国广播公司宣布开拍，暂名为《海洋》，但后来改名为《蓝色星球2》，并在2017年2月19日发布。