As the economic foundation of China and the lifeline of the national economy, manufacturing industry is the main battlefield to realize the upgrading of China’s economy. Accelerating the green transformation of manufacturing industry is the only way to achieve the dual goals of economic growth and environmental protection, and is also an important way to achieve the dual carbon target as soon as possible. At present, Chinese manufacturing industry has actively carried out the practice of green transformation. However, driven by the dual carbon target, the manufacturing industry still faces many difficulties in the process of green transformation, such as lack of green supplier management practice, large industry gap in innovation ability, low degree of marketization of green products, incomplete green transformation policy system and single financing channel for green transformation. Therefore, based on the perspective of green supply chain management theory, this paper analyzes the multi-party driving mechanism that affects the green transformation of Chinese manufacturing industry, and expounds the optimization path of green transformation of manufacturing industry from five perspectives: strengthening the support of the elements of green transformation with green procurement, giving full play to the main driving force of green innovation of enterprises, fully mobilizing the vitality of the green product market, establishing a "supply, produce, sales, politics and finances" whole chain policy support system, and realizing the coordinated development of transformation innovation chain and financial capital chain.