Abstract:Based on the monthly NOAA extended and reconstructed sea surface temperature, specific humidity, wind, temperature provided by NCEP/NCAR and the precipitation, temperature data of 160 stations in China provided by National Climate Center, relation of autumn central equatorial Pacific SSTA pattern and winter precipitation and temperature in China is explored in this paper by use of methods of correlation analysis and composite analysis. The results are shown as follows:(1) The index of autumn central equatorial Pacific SST has a quasi-10-yr periodic oscillation. (2) When the SSTA of central equatorial Pacific ocean is positive in autumn, East Asian trough deepened, the high pressure ridge aroung Lake Baikal strengthened, Which contributed to the cold air deliveried from high latitudes to the north and east of China, low-level moisture converged in the north of Jiangsu、Anhui, the south of Shandong and the middle of Henan, leading to more precipitation happens over the above areas in December, and vice versa. (3) When the autumn central pacific ocean SSTA is positive, air temperature increased in Jilin, Liaoning Province and central Inner Mongolian in December, and vice versa.