From long-term trend, the East Asian monsoon climate changed largely after mid-Pliocene warm period (3.264-3.025 Ma), but the underlying mechanisms are still the issues in debate. Using more recent Community Earth System Model version 1.0.4 (CESM 1.0.4) and considering the dynamical vegetation feedback and climate effects of aerosol, several simulations are planned to conduct to model the climate in and after mid-Pliocene warm period. The contribution from the uplift of Tibetan Plateau (topography height) and global cooling (ice sheet and atmospheric greenhouse gas concentration) to the East Asian monsoon change and inland Asian drying will be comprehensively analyzed. Up to now, there are very few studies concerning the changed East Asian monsoon climate after mid-Pliocene warm period. Therefore, this project is expected to further reveal the evolution mechanisms of East Asian paleomonsoon climate and provide a scientific reference for deeply understanding the effects of the uplift of Tibetan Plateau and Global cooling on the East Asian monsoon climate change.