Abstract: Based on NOAH CLM monthly surface evaporation data of Global Land Data Assimilation System (GLDAS), combined with APHRODITE precipitation data and ERA5 reanalysis data sets, the relationship between evaporation on the Tibetan Plateau (TP) and Tibetan Plateau Vortex (TPV) precipitation from 1981 to 2015 was analyzed. The results show that: (1) There is a significant positive correlation between the surface evaporation of the TP and the precipitation of the TPV, that is, when the whole evaporation of the TP is weak, the precipitation of the TPV in the middle of TP is less, but when the evaporation of the whole plateau is strong, the precipitation of TPV in the main part of TP is more. (2) In the year of high value of surface evaporation and TPV precipitation on the plateau, the vorticity at 500 hPa is positive abnormaly. Combined with the convergence of north and south airflow, the cyclonic circulation in the south of TP is strengthened, which is beneficial to the transport of water vapor to the TP, makes the water vapor flux converge, and provides water vapor conditions for the TPV precipitation. The strong westerly jet at 200 hPa strengthens the vertical motion and the upper divergent circulation, which is beneficial to the formation of TPV. The anticyclone circulation in the eastern part of TP makes the position of the South Asia High eastward, the intensity is strengthened, the plateau water cycle is more active, and the TPV is easier to precipitation. (3) When the surface evaporation of TP and the precipitation of the TPV are strong, the surface flux in the source area of TPV is strong, which is beneficial to the generation of the TPV and the TPV precipitation in the source region. At the same time, the abnormal increase of the overall soil moisture of the whole TP is also beneficial to the further development of the TPV and the generation of more precipitation.