Abstract: In the era of knowledge economy, knowledge, as an independent element and the extensive combination of knowledge element and other production elements, has become the core element of enterprise production input to improve enterprise performance and output, and the related innovation and development mode has correspondingly become the leading way of value creation in today's era. In order to explore the innovation model of enterprises that face an upheaval rarely seen in a century, this paper takes three high-end manufacturing enterprises as the main research object, and uses the classical grounded theory to code and analyze the data; Furthermore, by comparing the existing theoretical research, we construct an ambidextrous innovation value chain logic model after coding the data, consisting of "explicit/tacit knowledge factor input, exploitation/exploration ambidextrous innovation mode, relative/absolute competitive advantage and enterprise performance". It is found that:(1) the ambidextrous innovation value chain is composed of two sub-value chains based on explicit knowledge and tacit knowledge, and there is obvious heterogeneity; (2) there is also ambidextrous interaction of the two sub-value chains, thus forming a double helix structure of heterogeneous interaction. In addition to enriching the study of ambidextrous innovation, this paper also has some guiding significance for the transformation of China's innovation-driven strategy led by independent innovation. What's more, it could improve enterprises' cognition of the value of double-helix innovation.

Key words: knowledge factor, ambidextrous exploration, ambidextrous innovation, grounded theory