With the advent of knowledge economy, any enterprise can be regarded as providing "knowledge service" for customers. Through the process of tacit knowledge acquisition and innovation, enterprises will eventually transform tacit knowledge into the core competitiveness of enterprises. Based on the sample data of Chinese listed manufacturing companies for three consecutive years, this paper analyzes the impact of three ways of tacit knowledge acquisition (namely: employee training, research and

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... elopment and market research) on enterprise performance, and introduces the factor of redundant resources to analyze its moderating effect on this relationship It is found that the three ways of tacit knowledge acquisition have significant positive effects on enterprise performance; different types of redundant resources (non precipitation redundant resources, precipitation redundant resources) strengthen and weaken the three positive relationship mechanisms. Based on the theory of resource-based view, it promotes the development process of knowledge acquisition and innovation under the knowledge economy of enterprises.