The full implementation of the R&D expenditure policy means that the government will increase its support for enterprise technology R&D, encourage enterprises to invest heavily in technology R&D, improve product innovation ability and market competitiveness, and realize the deep integration of Industry-University-Research. Specifically, the relevant policies implemented by the government mainly include the following aspects:

1. Preferential tax reduction policy. In order to promote enterprises to increase investment in technology research and development, the government has implemented preferential tax policies such as R&D expenses plus deduction and enterprise income tax halved, which has reduced the burden on enterprises and enhanced their technological innovation ability.

2. Government subsidies and incentives. The government encourages and supports enterprises to carry out technological research and development, and gives financial support and encouragement to outstanding scientific research units and talents through the establishment of special funds, technological innovation and other incentive policies, so as to enhance the enthusiasm and innovation ability of enterprises in technological innovation.

3. Scientific and technological innovation guidance. The government supports enterprises to carry out technical research and development cooperation, and through policy guidance, strengthen technical exchanges, form a good cooperative pattern of joint innovation between enterprises in the central region and large, medium and small enterprises, and realize the deep integration of Industry-University-Research.

The full implementation of R&D expenditure policy can effectively promote the increase of R&D investment of enterprises, improve their technological innovation ability and level, and promote the deep integration of Industry-University-Research, which is of great significance to the transformation and upgrading of enterprises and society and the sustainable development.