Abstract: Opportunity and resources，two crucial elements in entrepreneurship，possess complex interactions reciprocally. To separate the main research veins of entrepreneurship from the complex interaction network means a lot to reveal the origin of entrepreneurship. Presently, some scholars have integrated opportunities and resources, they proposed a new construction of the "Integrated Opportunity and Resource Development Behavior" from a systematic perspective. However, the research is still in the exploratory stage because the measurement system of the new constructive concept and its impact mechanism on entrepreneurial performance are ambiguous. Firstly, based on the ideas above and guided by the maxims of the traditional Chinese philosophy “the balance of yin and yang” and “the cultivation of both internal and external”, we divide the integration between opportunity and resource into two sub-dimensions: Internal Integration and External Integration and measure them as well, besides, the integration of opportunities and resources also reflects the interaction and balance between Internal Integration and External Integration. Then the paper explores the relationship between integration between opportunities and resources and entrepreneurial performance. Lastly, the paper examined the adjustment of network relationships between the two.