It is a Key player for Doctrine of Equivalents of interpretation and application in the patent infringement. While the use of Doctrine of Equivalents on the judicial decisions they may not otherwise. The Doctrine of Equivalents of patent infringement litigation often is used to determine the key to victory or defeat. So can interpretation and application of Doctrine of Equivalents be used to explain the lack of fairness and justice? Two levels affect this. First, it will hinder the development of human resources for innovation and invention; on the other hand, it will hinder the use of proprietary information with competitors in the industry and then R & D innovation. Therefore, how to strike a balance, and provide companies with operations on the coping strategies? It must provide light to the government to develop policies to make the state's industrial economic development not have a negative impact, it will be able to make Taiwan high-tech industries the key to scale new heights. The development of Taiwan's high-tech industries has its advantages which, if they can continue to innovate and pursue new knowledge, create new knowledge, apply new knowledge, will be able to continue to successful development. In the arena of global competition, technological innovation in creating and maintaining the competitive edge play an important role. In the big picture, the State must be able to establish an economic growth patent policy..Taking into account the economic advantages of science and technology policy is the most important contribution of science and technology enterprises and will provide support to business and trade activities to encourage government, industry, education and cooperation between research units, to encourage and support scientific and technological innovation, and to develop plans to enhance the creativity and support research and development activities.This must be done as soon as possible due to the necessary Doctrine of Equivalents on the legal structure to ensure the rights and interests of both parties, thus contributing to the sustainable development of Taiwan's high-tech industries.