Abstract:The high-tech industry is gradually becoming the main battlefield of the competition between countries. The window of opportunity theory provides a new analytical perspective for the latecomers to catch up in high-tech. There are many researches on this theory, but some key concepts and operation logic are still fuzzy, which leads to some obstacles in applying the theory to practice. This paper studies the logical connotation and application path of the window of opportunity theory, and finds that the logical connotation of the window of opportunity is that there are objectively events or trends to reduce the entry cost, coupled with the initiative response of the latecomer, and then the conventional advantages are generated to form a competitive advantage to catch up with the first mover. In addition, the logical connotation of the window of opportunity itself determines that it cannot be identified in advance. Therefore, the government, using the window of opportunity theory to guide practice, should formulate industrial policies at the national level, accurately identify high-tech industries whose entry costs can be reduced, and formulate relevant policies according to the identification results to encourage enterprises to respond abnormally. And the dynamic policy support of the whole life cycle should be carried out to guide the industry to give full play to its conventional advantages to catch up quickly.