New quality productivity is an important key for promoting the high-quality development of the private economy. It can break through the barriers and bottlenecks that private enterprises encounter in the “innovation chain, industrial chain, capital chain, talent chain, and policy chain”, and promote the formation of an internal and external linkage and integrated deployment mechanism that integrates scientific and technological innovation, industrial transformation, talent cultivation, capital circulation, and policy support, empowering the private economy to achieve high-quality development. To make this mechanism effective, the government and enterprises should adhere to the “two unwavering” principles and create a fair competition, optimized service, and business-friendly development environment for its operation. The government should act as the “guardian” of the mechanism’s operation, consistently adhere to the “three unchanges” policy, properly handle the “five important relationships”, and foster confidence in the development of the private economy. Additionally, private entrepreneurs should always uphold the concept of law-abiding operation, make forward-looking plans for the future development of their enterprises, and focus on optimizing enterprise systems to ensure that the “five-chain integration” mechanism plays a greater role.