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1. Subaerial erosion occurs often with reduction to a peneplain.

2. Then it became a peneplain by the exposion and declination in the Jurassic, forming the widespread coal-bearing strata which can be correlated.

3. In Early Carboniferous karst peneplain of Central Guizhou there were a lot of karst negative forms, for example karst basin, karst depression.

4. Distribution rule of rock characters, geological structures and distribution condition of peneplain are analyzed understand karst distribution rule in depth.

5. Quaternary loose and thicker deposits are widespread in Beihaitown, forming a fan-shaped peneplain in geomorphology.

6. The genesis of deposits is analyzed that deposits were formed in peneplain lake condition in semi-humid continental climate during late period of early Permian and early period of late Permian.

7. Ma, and lakes and top lacustrine deposits of Wudaoliang Group became base surface for erosion and peneplanation since Late Miocene, which formed planation surface or peneplain of the Tibetan Plateau.

8. The basin and the mountain were formed by Cenozoic rifting on the basis of the North China peneplain, which was formed in the Late Cretaceous.

9. These planation surfaces joined once each other imply that the vast southeastern part of China was in a state of peneplain during late geological period.