The sediment sequences influenced by the sea birds and seals from the islands of South China Sea and Antarctica were selected as the carrier for studying the environmental change, using the methods of interdiscipline and eco-geology for Antarctic ice-free regions. The goals of the present study are mainly to explore eco-system evolvement of typical islands in the process of the climate change and seal level fluctuation, discuss the natural and anthropogenic factors influencing the ecosystem evolution, and find out the relations of growth and decline and the sequence of main plant or animal community in ecosystem. On the other hand, combined with the results of our previous researches, the spatial and temporal distributions of ecological records for the typical islands along the directions of longitude and latitude were synthesized as a network. Meanwhile, we compared the change of penguin and seal populations in Antarctic peninsula along the direction of longitude and latitude in order to discover the possible route of sea animal migration in response to climate change and ice-sheet advance or retreat. According to the comparison between the climate change and the seabird ecosystem evolvement in the Antarctic and South China Sea, the ecological model and typical profiles of the ecosystem evolvement in response to the climate change have been built. Finally, we compared the results with the climate records of ice-core, loess and marine sediments to provide the evidence of studying and forecasting the changes of climate and environment, and this may be helpful for building the new subject of Holocene Eco-geology and providing the striking production during international polar year(IPY).