Seawater desalination device

The embodiment of the invention provides a seawater desalination apparatus, which comprises a seawater evaporation part, the seawater evaporation part comprises a top cover and a base, the top cover covers the base, the base is provided with a water inlet channel and a heating element, the water inlet channel is used for introducing seawater into the seawater evaporation part and covers the heating element of the base, and the heating element of the base is used for heating the seawater evaporation part; the heating piece is used for absorbing solar energy so as to heat and evaporate seawater into water vapor; the steam condensation part is arranged below the seawater evaporation part, is communicated with the seawater evaporation part and can be in contact with seawater, so that water steam can be condensed into fresh water; and the fresh water storage part is arranged below the steam condensation part, is communicated with the steam condensation part and is used for storing fresh water generated by the stea