The invention discloses a solar-based settling type net cage for culture. The net cage comprises a floating platform floating on a sea surface and a net cage body arranged just below the floating platform, wherein the net cage body is arranged in a second accommodating space of the floating platform through a sliding component in a rising and falling slidable manner, and the rising and settling ofthe net cage body are regulated through counterweight blocks on the floating platform. The solar-based settling type net cage for culture, disclosed by the invention, is relatively simple in structure and convenient in use, the rapid and stable rising and falling control of the net cage body is achieved, the falling depth is adjustable, applied electric energy is converted from solar clean energy, external connection of power lines is not required, excess electric energy of other sources cannot be consumed, and the environment is protected.