The invention discloses an embedded solar seawater distilling device based on light condensation direct heating. The device is characterized in that a light reflection circular truncated cone is installed in the center of a heating water tank, a light condensation funnel and a throwing light guide device are installed above the heating water tank, and a heat preservation material is arranged at the bottom of the heating water tank; an area between a circular truncated cone sleeve and the heating water tank is an evaporation condensation cavity. Feeding seawater passes through heat exchange coil pipes arranged in a fresh water tank and a concentrated seawater tank under driving of a water pump in sequence and then enters the evaporation condensation cavity, the wall face of a hydrophilic material is sprayed after the feeding seawater passes through the evaporation condensation cavity, a water film is formed under the effect of water stopping grooves, and water in the heating water tankabsorbs energy so that the temperature of the water can be increased. The water film is heated and evaporated to form vapor, and the vapor is condensed to form fresh water on the wall face of the side, with low temperature, of the evaporation condensation cavity; finally, the non-evaporated seawater enters the concentrated seawater tank, and the fresh water enters the fresh water tank. By integrating the solar heat collection part and the sweater distilling desalting part, the device has the advantages of being compact in structure, small in occupation floor, capable of achieving efficient coupling of seawater evaporation temperature and heat collection temperature of a condenser and the like.