Due to the rise of the knowledge economy, knowledge becomes one of the important required resources of the modern enterprise development and growth. When the enterprise cannot completely meet the demand of knowledge internally, it often transfers, shares and innovates knowledge to acquire external knowledge resources. This paper is to synthesize the related theory on industry cluster and knowledge spread, which starts from the process of diffusion of knowledge beyond the industrial cluster enterprise. According to the characteristics of knowledge alliance network, this paper utilizes the theor...