Research on technology policy protection space of China's deep-sea carrying equipment

The development of disruptive technologies in the Marine field is an important means to seize the commanding heights of international scientific and technological competition and requires policy support from the government. Based on the concept of strategic niche management, this study quantitatively studied the construction and evolution of policy protection space during the development of China's deep-sea carrier equipment technology from 2001 to 2018. The research shows that :(1) from 2001 to 2018, three different types of policy tools were used in relevant technology policies, with the proportion of "expect establishment" 62.50%, "network construction" 6.58% and "learning and experiment" 30.92%, but the use of policy tools was not balanced. (2) on the whole, the growth trend of the number of deep-sea submersible development is lower than the trend of the use of policy tools, indicating that the use of policy tools has a certain impact on the development of deep-sea vehicle technology, but the effect is limited. From 2010 to 2018, the number of deep-sea vehicles developed and the number of policy tools used increased by three times and four times respectively compared with that from 2001 to 2009, indicating that the use of policy tools after 2010 has a significant role in promoting the development of deep-sea vehicle technology and industry. (3) China's deep-sea delivery equipment industry is still in the stage of technological niche, and the use of protective policy tools such as network construction should be strengthened.