To provide a portable small-sized fresh water making apparatus which obtains fresh water from raw water such as seawater or the like.

First water absorbing cloth is provided on the back of the heat receiving surface of a first heat receiving plate and, by repeating this constitution, the water absorbing cloth is arranged on the back side of the heat receiving plate up to a combination of the (N-1)-th heat receiving plate and the (N-1)-th water absorbing cloth. Further, the N-th heat receiving plate functions as a cooling plate the back of which faces the outside and has the support function and hermetically sealing function of a distillation part frame 2. The distilled water condensed by the respective heat receiving plates is collected to be obtained, and further a reflecting plate 5 variably regulated in its angle of inclination is provided under the main body of the solar ray distillation apparatus 1 to condense light to the first heat receiving plate.