Under the background of global climate change,extreme precipitation events have been happening, which caused a serious influence and damage to human living.Spatiotemporal distributions of extreme precipitation indices were quantitatively analyzed using ClimDex model and ensemble empirical mode decomposition (EEMD)based on the data of daily precipitation in Xinjiang basin,Jiangxi Province from 1960 to 2005.The results showed that all kinds of extreme precipitation indices presented an upward trend at different degrees, especially for extreme precipitation(R95P).The IMFs of extreme precipitation indices showed the quasiperiods of 2.56~2.88 years,5.11~6.57 years,9.20~11.50 years,22.59~36.48 years,and the largest contribution belongs to IMF1 variance,the IMF3 oscillation period was more significant.A comparison of three extreme typical precipitation event years for five-day extreme precipitation (RX5 day)and extreme precipitation(R95P)revealed a slightly highervaluesin the central basin than the surrounding areas,and the two indices were higher in the extremely rainy years than in normal and extremely dry years,extreme precipitation events in extremely rainy years had a relative high occurrence frequency in the central basin.