Based on spline function interpolation of ArcGIS, the paper applied mann-kendall test and rescaled range analysis(R/S) method to research the long-term series of precipitation at 43 meteorological stations in Hebei and neighboring provinces. The results show that in spatial distribution, Zunhua, Cangzhou and west of Shijiazhuang are the more precipitation regions, but Bashang is the region lack of precipitation. The rainfall isoline gradient of mountains is the larger than rhat of plain areas. In temporal distribution, the 62%~74% of whole year's precipitation is concentrated on flood season. Precipitation of decades is on decline, but it was rising in 1980s and 1990s. Under different decades, the spatial distribution of precipitation has no obvious change. Meanwhile, the precipitation presentes a decreasing trend in most parts of Hubei province, especially the west of Shijiazhuang with -4mm/a. In addition, the future trend of annual precipitation will continue to decline as the past in most parts except Cangzhou, Langfang and Shijiazhuang.