The new development philosophy has established the guiding principle for China to promote the high-quality development of economy and society，and the new development dynamic has described the path selection for China to achieve the high-quality development goal. Remarkable results have been achieved in implementing the new development philosophy，and new steps have been taken in building the new development dynamic. However，there are still some urgent problems to be solved in implementing the new development philosophy，and the construction of the new development dynamic needs to be accurately grasped and actively promoted from the overall height. In pursing economic development，China is under the triple pressures of shrinking demand，disrupted supply and weakening expectations. However，at the same time，the Chinese economy boasts vast potential，strong resilience and bright prospects. In response to the triple pressures，we need to accelerate the triple upgrades of “demand structure，supply structure and efficiency structure”，pay more attention to better linking the short-term steady growth policies with the long-term development strategies，fully，accurately and comprehensively implement the new development philosophy and accelerate the construction of the new development dynamic. In terms of upgrading the demand structure，we should attach great importance to and strengthen the demand side management to build a strong domestic market；In terms of upgrading the supply structure，we should further promote the supply side structural reform and build a modern industrial system；In terms of efficiency structure upgrading，we need to focus on rationalizing the relationship between the government and the market and improving the potential of economic growth.