Abstract: Quantum science and technology will have a significant impact on society and economy. Many countries/regions have proposed strategic plans for quantum science and technology, taking quantum as an important direction of science and technology development, increasing research and   development investment and occupying commanding heights. This paper makes an in-depth analysis on the innovation strategies of quantum science and technology in main countries/regions. First, we investigate the quantum science and technology strategic plans of main countries/regions, including the United States, the European Union, the United Kingdom, Japan and Russia, to analyze their strategic layout characteristics and specific measures. Second, we analyze the strategic coordination and organizational mechanism in the United States and the European Union. Then, the special quantum research institutions established in recent years are summarized, and the measures taken by these institutions to accelerate the research and innovation of quantum information science are analyzed. After that, the development status of quantum science and technology in China is summarized. Finally, the paper puts forward suggestions for the innovation and development of quantum science and technology in China, including formulating special strategic plans, optimizing overall management mechanism, promoting quantum alliance and building industrial ecosystem, strengthening quantum discipline construction and cultivating quantum professionals.

Key words: Quantum Science and Technology, Strategic Plans, Coordination Agency, Organization and Management, Research Institutions