Abstract: With the help of TEM, superminiature fossils, micropores, microfissures, crystalization forms and grain sizes of rocks, and their contact relation between them in carbonate rocks and siliceous rocks of different ages are observed,analyzed and studied in this paper. These superminiature textures and fossils are of great importance to discovering further the mys- tery of rocks and strata, prospecting petroleum and other minerals, and discussing the life origin, the development of micropaleontology, and the formation mechanism of hardbodies of living thinges,and so on.