Abstract:The competitiveness of regional eco industry is to Influence the key to the sustainable development of regional economy and society. How to promote the competitiveness of eco industry in regional economic and social development is an important proposition.And Low carbon scientific and technological innovation is the most important means to form and promote the competitiveness of eco industry. This paper illustrates the value of low-carbon technological innovation, makes clear the function orientation of low carbon technology innovation to promote the competitiveness of eco industry, and constructs some mechanisms to promote the competitiveness of eco industry with low carbon technology innovation from the aspects of government policy guidance, economic interest driven, competition and cooperation, information sharing and sustainable innovation of low carbon technology with the goal of improving the quality of ecological products.