Siberian high pressure is the strongest surface pressure in the northern hemisphere and its strengthening and weakening causes changes in the climate of different regions. In order to understand the interaction between polar large-scale circulation and its effects on the intensity and weakness of the Siberian high-pressure, the relationship between Siberian hyperbaric changes and Arctic oscillation in northern hemisphere winter was investigated. For this purpose, during the period 1950 to 2022, the AO index, sea level pressure, and geopotential height were obtained from the Center for Environmental Prediction/Atmospheric Sciences (NCEP/NCAR) and after the surveys it was observed that in the winter period of the North Korean hemisphere, the largest extent and intensity of high pressure in Siberia in January. The results showed that with the occurrence of severe anomalies in the polar region, Siberian high pressure directly becomes severe and weak. In the positive phase of the AO index, geopotential height anomaly in the region becomes negative and two positive abnormality cores are formed on Central Asia and Eastern Europe. During this high-pressure situation, Siberia has been associated with an increase in pressure, which is sometimes increased to more than 10 to 15 hPa in a month compared to the long-term average. In the negative phase of the opposite conditions occur and with the positive anomaly of the geopotential height of 500 hPa in the polar region, two patterns along with negative anomaly of geopotential height are formed on Eastern Europe and Central Asia. In this situation, Siberian high-pressure is weakened and is accompanied by a severe decrease in pressure and weakening. The results showed that AO index can be used for seasonal and intra-seasonal prediction of high pressure in Siberia and based on it, the behavior of this system can be explained. The results showed that in the negative and positive abnormal periods, hot and cold temperature in Eurasia and Siberia region were strong and on the other hand, in the polar and subtropical region, the temperature decrease and increase in the two phases of AO were observed.