绿色环保产业兼具带动经济增长和应对环境问题的双重属性，“四链”深度融合是绿色环保产业实现高质量发展的重要支撑，是实现“双碳”目标的重要抓手。本文通过深度分析企业不同发展阶段“四链”融合特征，结合产业发展现状，发现在企业创立初期，资金链是关键，创新链与人才链驱动，逐步形成产业链；在企业成长期，主要靠资金链驱动，人才链与创新链支持，拓展产业链；而对于成熟期的企业，可依据产业链进行战略布局，维持创新链。研究发现，绿色环保产业“四链”融合主要存在创新链与产业链衔接不紧密、资金链对各链的支撑度较弱、人才链与创新链和资金链融合度不够等问题。研究建议，制定低碳创新战略路线图，明确“四链”融合发展路径；提高创新链与产业链适配度；优化资金链，提高与各链融合度；完善人才链，注重人才培育；企业根据自身发展阶段，明确驱动链，保障“四链”有效融合。

The green environmental protection industry has the dual attributes of driving economic growth and coping with environmental problems. The deep integration of “four chains” (i.e., innovation, industrial, capital, and talent chains) is crucial for the high-quality development of the green environmental protection industry and the achievement of the carbon peaking and carbon neutrality goals. Considering the development status of the green environmental protection industry, this study analyzes the characteristics of four-chain integration at different stages of enterprise development. In the early stage of establishment, the capital chain is key to enterprises and an industrial chain is gradually formed driven by the innovation and talent chains. During business expansion of enterprises, the industrial chain is extended, driven by the capital chain and supported by the innovation and talent chains. At the mature stage, enterprises can carry out strategic layout based on the industrial chain while maintaining the innovation chain. However, the four-chain integration in the green environmental protection industry of China still face several problems, including weak connection between the innovation and industrial chains, weak support of the capital chain to other chains, insufficient integration between the talent chain and the innovation and capital chains. To address this, we propose the following suggestions: (1) developing a low-carbon innovation strategy roadmap to clarify the development paths for four-chain integration; (2) improving the compatibility between the innovation and industrial chains; (3) optimizing the capital chain to improve its integration with other chains; (4) improving the talent chain; and (5) clarifying the driving chains according to the development stages of enterprises to ensure the effective integration of the “four chains”.