Abstract:The paper put forward the concept of big data capacity based on resource based view and dynamic capabilities theory, and propose the dimensions of big data capacity through theoretical and empirical research. This paper study the relationship among big data capacity and group control by using 118 group companies in Guangdong province as sample data , and structural equation model to test the hypotheses. The results show that big data capacity has significant impact on group control, but currently exists only in the integrating resources capacity, namely the integrating resources capacity has a positive impact on strategic control, financial control and cultural control. The in-depth analysis capacity has no significant impact on strategic control and cultural control, but has a negative impact on financial control; the real-time insight and predictive capacity has no significant impact on strategic control, financial control and cultural control.