In this study the relationship between the Arctic Oscillation (AO) and climate in China inboreal winter are investigated. Correlation analysis for the last 41 years shows that the wintertemperature and precipitation in China change in phase with AO. High positive correlation (＞0.4)between temperature and AO appears in the northern China. High correlation coefficients betweenprecipitation and AO cover the southern China (close to the South China Sea) and the central China(between 30°-40°N and east of～100°E), with the values varying between +0.3 and +0.4. It is foundthat during the past several decades the precipitation was strongly affected by AO, but for thetemperature the Siberian High plays a more important role. At the interdecadal time scale the AO hassignificant influence on both temperature and precipitation. Multivariate regression analysisdemonstrates that AO and the Siberian High related variance in temperature and precipitation is 35%and 11% respectively. For precipitation, however the portion is rather low, implying that some otherfactors may be responsible for the changes in precipitation, in addition to AO and the Siberian High.