Abstract: The development of new quality productivity is bound to promote the high-quality development of economy. It is of great significance to profoundly analyze the mechanism and path of new quality productivity to enable high-quality development of export trade for the construction of a trade power and high-quality economic development. Innovation in the sense of economics is closely related to the new quality state of productivity. Scientific and technological innovation creates new products, and new quality productivity gives birth to new industries. The spread, diffusion and transfer of knowledge and technology, namely technology spillover, is an important source of technological innovation and the development of new quality productivity. Technological innovation can produce direct export growth effect, and the development of new products and new industries will naturally promote the expanded marginal export growth. The spread and diffusion of knowledge and technology in the innovation ecosystem is an important way to enhance the competitiveness of export products; the development of the new quality productivity directly improve export competitiveness, while the new quality productivity can improve technology absorption ability and indirectly improve the competitiveness of export by expanding the scope of advanced elements, improving the quality of elements, and optimizing the structure of elements. The new quality productivity can create new demands and local market effect to promote exports through effective high quality supply. The new quality productivity can strengthen the competition of domestic products and industrial levels, promote the improvement of enterprise productivity, thus enabling enterprises to overcome the critical productivity of sunk export costs and increase exports. Accelerating the growth of export varieties, promoting the upgrading of export trade technology structure and promoting the transformation of trade mode are the specific paths for the new quality productivity to enable the high-quality development of export trade.

Key words: new quality productivity, high-quality development of export trade, competition effects, innovation effect, local market effect