Lei gong mo,a kind of Tektites in Chaina,is black glassy objects found only in the Hainau island and the Lei Zhou Peninsula. They are genetically related to the Tektites in the Australasian strewn field. Their shapes present predom- inately as water-drop and bullet, and some of them are platy. Its dented surface and fine close lamellatiori indicate that they were Liquid drops freezed by rapid cooling in the space and droped down to the earth. The diagram show- ing the major oxide variation of Lei gong mo indicates that they are different from the glass in the cosmos. Lei gong mo has REE pattern similar to normal Australasian Tektite and terrestrial shale and basalt. K and U abundances also indicate that Lei gong mo belongs to terrestrial rock. It is concluded that Lei gong mo were formed by impacting of a very large meteorite on the surface of the earth.