In order to analyze haze change regularity and the origin of the haze weather and provide technical support for its prevention, the correlation between the haze and meteorological condition and pollutants concentration are discussed based on the surface meteorological observation data and the pollutants concentration monitoring data from the step station of Shijiazhuang environmental monitoring center. It is proved that the haze days during the 1960s is minimal; the haze days rises sharply during the initial stages for reform and opening-up and the 1990s; the haze days obviously decreases after the 2000s.The haze occurs more frequently in autumn (20.5%) and winter (53.5%), and less in spring(15.2%) and summer(10.8%). Quiet wind, lower humidity and continuous no-rain days are the important causes of the haze. The mass concentration change regularity of SO₂, NO_<i>x, PM2.5 and PM10 (the correlation coefficients are 78.4%,70.9%,77.3% and 73.8%, respectively) is coherence with the haze days of Shijiazhuang City. Their mass concentration is obviously higher in haze days than in the normal days. Their mass concentration is highest in winter, lower in autumn and lowest in summer.