This paper aims at systematically studying the industry and finance combination from a relatively micro aspect, namely the enterprise group. This paper takes the enterprise group as the subject in research. Based on the combination of industrial capitals and financial capitals, this paper analyzes the concepts, characteristics, and types of industry and finance combination in large enterprise groups that regard the industry as the main body. Besides, this paper makes a theoretical analysis of comparing the industry and finance combinations in domestic and foreign enterprise groups. By this research, the author hopes to discuss how large enterprise groups make best use of resources, economy of scale, and economy of scope and improve the core competitiveness by combining industrial capitals and financial capitals.