Abstract: Human resource service is an important productive service trade to match the supply and demand of the labor market. The application of new technologies, such as big data, cloud computing, and artificial intelligence, can not only promote the innovative development of human resource service enterprises, but also promote the realization of high-quality employment. This paper explores the impact mechanism of the big data capacity and the technological innovation on the competitiveness of human resource service enterprises based on the innovation theory and the resource integration theory. The empirical analysis is carried out by applying hierarchical linear regression and structural equation model based on the data of 257 valid samples of human resource service enterprises. The Bootstrap method of deviation correction is applied to test the mediating effect of the technology innovation between the big data capability and the competitiveness of human resource service enterprises. The outsourcing of human resources for online recruitment is the mainstream service projects of human resource service enterprises, while the middle-high end talent search service project is relatively weak. The big data resource integration capacity and the big data predictive analysis capacity have a significantly positive impact on the competitiveness of human resource service enterprises. Technological innovation has a significantly positive impact on the competitiveness of human resource service enterprises. Moreover, technological innovation has to some extent mediating effect both on the relationship between the big data resource integration capacity and the enterprise competitiveness, and on the relationship between big data prediction analysis capacity and enterprise competitiveness as well. The mediating effect of technological innovation between the big data resource integration ability and the enterprise competitiveness is greater than that between the big data predictive analysis ability and the enterprise competitiveness. In view of this, these ways are all beneficial to enhance the competitiveness of human resources service enterprises, such as strengthening the enterprise's big data resource integration ability, the big data prediction and analysis ability, and the integrating the enterprise's technological innovation with the help of big data ability.

Key words: big data capacity, technological innovation, human resource service enterprises, competitiveness