Based on Global Super DEA model, this paper measures the efficiency of China''s software industry from 2009 to 2018, and reveals its spatial-temporal evolution characteristics by using conditional Kernel density. It is found that the efficiency of China''s software industry is low, but there is a large gap between the eastern, central and western regions, and the gap is gradually widening. The gaps of software industry efficiency among provinces in the eastern region, the central region and western region are narrowing. On the whole, there is no spatial agglomeration in the efficiency of software industry among provinces. There is a negative spatial spillover effect in the eastern region, but there is no spatial spillover effect in the central and western regions. In order to realize the high-quality development of China''s software industry, this paper proposes to further enhance the technological innovation ability of China''s software enterprises. All regions should continue to tap the advantages and make up for the shortcomings, and build a collaborative development pattern of software industry.