The present invention relates to an artificial freezing apparatus and a freezing method therefor. The present invention includes a supporter for vertically moving a water ice maker over and under the surface of water； and the water ice maker for producing an ice while being vertically moved by the supporter and to fall down thus-produced ice into the surface of water. In accordance with the present invention as described above, the present invention can separate some from the water and expose it to the atmosphere to naturally freeze the separated water and return thus-produced ice to the surface of water to thereby accelerate the freezing process on the surface and thus make some ice on the surface when it is difficult to ice, and creating various additional effects such as preventing global warming, preserving ecosystems and the like.
