Simulations of summer precipitation and associated water vapor transport over the Tibetan Plateau, as well as the impact of resolution, are analyzed with Atmospheric Model Intercomparison Project experiment results under various resolutions (i.e., 180, 120, 60, and 20 km) by using the Meteorological Research Institute (MRI) model.The model shows to reasonably reproduce the climate mean summer precipitation distribution over the Tibetan Plateau.However, the interannual variability of precipitation and water vapor transport failed to be captured by this model.With an increase in resolution, the simulation of climate mean summer precipitation improved significantly, including the annual cycle and spatial distribution.The simulation of interannual variability of the water vapor transport was much closer to the third generation reanalysis of the European Centre for Medium Range Weather Forecasts (ERA-interim).However, little improvement in model skill was noted in the simulation of interannual variability of summer precipitation over the Tibetan Plateau and the climate mean water vapor transport.Thus, overestimation of summer precipitation amount and Indian trough remains in high-resolution models.