Abstract: In order to analyze the vegetation net primary productivity (NPP) in Gonghe Basin and to provide the basis for vegetation resource management and environment protection policy establishment, based on GIS technology, a quantitative analysis was conducted on the spatiotemporal characteristics of vegetation net primary productivity (NPP) in Gonghe Basin. Average annual vegetation NPP data of MOD17A3 dataset from 2000 to 2012 were used. Results showed that the Basin average annual NPP was 103.3 g C/(m²·a), ranged from 369.3 g C/(m²·a) to 482.1 g C/(m²·a) during the 13 years. In terms of the average annual NPP of the main vegetation types in the Gonghe Basin, meadow had the highest value of 128.8 g C/(m²·a), and the lowest NPP value 34.9 g C/(m²·a) was found in shrub. Compared with that in 2000, the annual NPP in most part of the basin in 2012 increased，the area with decreased NPP value only accounted for 0.68% of the total area of the basin. The increase of the annual NPP in the basin was mainly in linear type, and the area with NPP decrease only occupied 0.7% of the territory of the basin. The result proved that the vegetation was improved in the basin from 2000 to 2012.