Abstract: We call a system of sliding structures, including bedding slip-dessecting slip-overthrust-nappe structure, as the layer sliding structure. There are six superincumbent beds, characterized by various genesises of horizontal compression and gravitative sliding, and multiple-cycle activities Yinzhi and Yenshan are in the layer sliding structures developed in the shallow crust in southern Jiangsu and northern Zhejiang. A superim position basin is produced by the layer sliding structure, and this basin is beneficial to the formation and preservation of oil and gas. It should be stressed that activities of structural stresses are closely related to the movement of oil and gas.