The invention discloses seawater desalination plant, which includes a solar energy heat storage system, a wind power generation system, a steam generation system, a refrigeration water intake system and a water supply system. The steam generation system is composed of a heat exchange loop and a steam generation chamber, wherein the heat exchange loop is arranged in the steam generation chamber. The refrigeration water intake system comprises a refrigerator, a water collector and a reservoir. Deep seawater is pumped through a water pump and conveyed to a cold source end of the refrigerator through a water supply pipeline. A heat source end of the refrigerator is connected to the inside of the steam generation chamber. The refrigerator is located at an upper-end opening of the steam generation chamber and used for cooling steam generated in the steam generation chamber to a liquid. A biomimetic refrigeration surface of the refrigerator is provided with spherical projections, which include a refrigerator biomimetic refrigeration surface hydrophilic zone and a refrigerator biomimetic refrigeration surface hydrophobic zone. A biomimetic refrigeration surface similar to desert beetles is adopted in the seawater desalination plant. The biomimetic refrigeration surface is good in water collection effect, so that the operation efficiency of the seawater desalination plant is improved.