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Based on the regional air pollution data during heating seasons from 2004 to 2006 in the BeijingTianjinHebei region, associated with the sealevel pressure fields and high circumfluence characteristics, the synoptic weather patterns for air pollution are divided into five types: high pressure, cold front, low pressure, North China drytrough, and uniform pressure field. The high pressure type accounts for 40.0%. The regional air pollution process usually corresponds to an upperlevel circulation adjustment process. Continuous regional air pollution processes are usually affected by various kinds of synoptic patterns. Under the conditions of the surface convergence, lowlevel inversion and vertical sinking motion, pollutants are impeded to diffuse. The stable atmospheric stratification and influence of special terrain are the important reasons for the regional air pollution.