Abstract: Classification of sedimentary basins is akin to the purpose of investigation. So, it varies a lot. Our chief interest is laid mainly upon the kind of sedime ntary deposits that are relevant to the genetic history of sedimentary basins. To meet this end, we have firstly differentiated the temporal sequence relationship between sedimentation and basin-forming, and secondly given due consideration to the genetic processes of sedimentary basins. Our scheme of classification is roughly as follows: A. Antecedent Basins: A₁. Subaerial antecedent basins (fig, 2); A₂. Subaqueous antecedent basins (fig. 3); B. Growth (or syndepositional) basins: B₁. Flexuring growth basins (fig, 4); (a) Thin crust flexuring basins; (1) Lavatic basin; (2) Eugeosynclinal basin (antecedent basin in its early stage of development); (b) Thick crust flexuring basins; (1) Platform basin; (2) Parageosynclinal basin; (3) Miogeosynclinal bains; B₂. Fault growth basins (fig. 5): (a) One-side fault growth basin; (b) Two-side fault growth basin; C. Secondary Basins: C₁. Fault-subsided basin (fig. 6); C₂. Remnant synclinal basin (fig. 7); C₃. Intermontane basin (fig. 8); The role of tectonics and the temporal sequence of development and evolution of various sedimentary basins are discussed in this paper. And the direct driving force of basin-forming were thought to be in some way connected with local variation and displacement of subcrustal materials.