The types of original sedimentary basins on southeastern margin of North China plate were controlled by tectonic evolution. North China and Yangtze plates experienced the changes from"divergence"to"convergence"in Paleozoic-Middle Triassic. The southeastern margin of North China plate correspondingly experienced the changes from passive continental margin in Sinian-Middle Ordovician(Z-O

2

)to uplifting and denudation in Late Ordovician to Early Carboniferous (O

3

-C

1

). During late Early Carboniferous-Middle Triassic (C

2

-P

2

)

foreland flysch depositional basins were formed on the continental margin due to convergence of plates. During Late Triassic ?Early Jurassic

Qinling-Dabie orogenic zone was formed through the collision of the two plates

coupled with the formation of molasses sedimentary basins. During Middle Jurassic-Early Cretaceous

the margin of the orogenic belt detached while the epiorogenic subsidence occurred within the orogenic belt

resulting in a complicated structural pattern with outstretching on the trailing edge and thrusting on the leading dege. Outstretched fault-depression and down-warped basins were formed later under the control of the activities of Palaeo-Pacific plate and Pacific plate.