In this paper, the primary scientific issues about the impacts of land use and land cover change (LUCC) on global climate are analyzed, and its research progress is reviewed. LUCC-climate-ecosystem research system  integrated with satellite and field observation is constructed, with the consideration of  the intercross, integration and interpenetration among subjects to study the land use change effects on global climate. Furthermore, dynamic patterns and mechanisns  of LUCC, research approaches about the mechanisms and effectiveness of LUCC impacts on ecosystem and climate, and then the technical routes for the application of integrated satellite-earth research system to land use change effects on global climate  are discussed and analyzed. The following scientific objectives will  be realized based on above research approaches and technical routes. ① to further study the basic regulation, driving forces and its climatic/ecological effects of LUCC in three spatial scales: typical regions, key nations and global; ② to illustrate the mutual-feedback mechanisms among anthropogenic activities, climate change and LUCC processes, and to reveal the impact mechanisms of large scale LUCC processes on climate and terrestrial ecosystem; ③ to construct integrated simulated platform on multiple scale LUCC and its climatic and ecological effectiveness, and to quantitatively simulate the different spatial and temporal scale of LUCC trends and its climatic/ecological effects in different scenarios, then to define the contribution rate of large scale LUCC impacts on climate change in two ways, that is through initiation of the budget change of greenhouse gases and through the change in land surface and atmosphere processes; ④ to propose the strategy to responding to the impacts of LUCC on climate and ecosystem in the future, and to supply scientific basis for nations to respond to  global change and to achieve  sustainable development.