Abstract: In the present paper, using the spore-pollen analysis, we try to explain the general law of the evolution of the palaeogeography and palaeoclimatology of the fifth member of Funing group in the late Eocene Epoch, and of Dainan formation and Sanduo formation in the Oligocene Epoch, in the region of North Jiangsu. In the period of Funing group No. 5 member, this region was occupied with shallow lakes and mountains and of Central North-Subtropical climate. At then time, the topography of Dainan group was characterized by the richness of rivers, lakes, low mountains and hills. The climate of Dainan formation may be classified into the Northern North-Subtropical climate. The topography Sanduo formation was ranged from low mountain and hills to plains, and its climate was belonged to the Northern North-Subtropical climate. Two plates and two figures are presented in the paper.