A semisubmersible open sea aquaculture cage with combined wave and solar power generation, comprising a semisubmersible hull main structure, an aquaculture cage structure, a renewable energy power generation system and an anchoring system: the semisubmersible hull main structure is configured to serve as a carrier for the aquaculture cage structure, the renewable energy power generation system and the anchoring systems; the aquaculture cage structure comprises vertical net structures (34) and bottom net structures (108, 109); the renewable energy power generation system comprises a wave power generation system and a solar power generation system; the anchoring system is disposed at four corners of the top of the semisubmersible hull main structure. The semisubmersible open sea aquaculture cage can be rapidly constructed, put into operation and transferred, and convert the renewable energy into electric power for the productions and livings on the cage.
