Based on MOD17A3Hand MCD12Q1products of MODIS and meteorological data,spatiotemporal changes of net primary productivity(NPP)in Hebei Province during 2005-2014were quantitatively analyzed by the method of linear regression.The correlations between NPP and climate factors were analyzed by using the method of correlation coefficient.The results showed that the annual NPP value in Hebei Province mostly ranged from 200g/(m~2·a)to 400g/(m~2·a),among which the high NPP values distributed in the north of Yanshan Mountain and the east of Taihangshan Mountain.The annual average NPP and maximum NPP value in Hebei Province from 2005to 2014presented the same fluctuation change and slightly upward trend.The annual average NPP peaked at 337.63g/(m~2·a)in 2012.The areas with the growth rate more than 10%occupied 43.03%of the area of Hebei Province,and mainly distributed in the northwest and southeast of the Hebei Province.The annual average NPP of the five vegetation cover types decreased in the order:broadleaf forest>shrublands> grasslands>needleleaf forest>croplands during 2005-2014.Correlation between NPP and air temperature was mainly negative,while the correlation between NPP and precipitation was mainly positive.