Abstract: The comprehensive revitalization of Northeast China is a crucial support for achieving Chinese modernization. Due to systemic and structural issues， the development of market mechanisms in Northeast China has been relatively slow， leading to a slower pace of economic development compared to other regions. Further deepening of reforms is the fundamental driving force for advancing Chinese modernization and a necessary measure to achieve breakthroughs in the comprehensive revitalization of Northeast China. It is essential to seize the opportunity to integrate into the national unified market and build a high-level socialist market economy. It is necessary to create a policy environment conducive to the development of new productive forces， promote the upgrading of industries in Northeast China by cultivating and developing new quality productive forces. Comprehensive openness in Northeast China should be promoted， and an open economic system should be established through high-level openness to the outside world. Efforts should be made to accelerate the construction of a market-oriented， law-based， and internationalized business environment， facilitating new breakthroughs in the comprehensive revitalization of Northeast China.

Key words: Northeast revitalization; Chinese modernization; market economy; reform and opening-up; business environment