基于制度理论，以2018~2022年我国上市公司为研究样本，实证检验社会信任对企业ESG评级分歧的影响及其作用机制。研究发现，社会信任可以显著降低企业ESG评级分歧。机制检验表明，社会信任有助于改善企业内外部信息环境，进而降低企业ESG评级分歧。进一步研究发现，当企业内部控制强、市场化程度弱、高管绿色认知高以及公众环境关注强时，社会信任对ESG评级分歧的抑制作用更明显；另外，社会信任对社会和治理维度的评级分歧的缓解作用更显著。经济后果检验表明，社会信任通过降低ESG评级分歧会提高企业绩效和资本市场表现。

Based on institutional theory, this study empirically examines the impact of social trust on corporate ESG rating divergence and its underlying mechanisms using a sample of A-share listed companies in China from 2018 to 2022. The findings reveal that social trust can significantly reduce corporate ESG rating divergence. Mechanism tests indicate that social trust helps improve both the internal and external information environment of enterprises, thereby mitigating ESG rating divergence. Further analysis demonstrates that the inhibitory effect of social trust on ESG rating divergence is more pronounced when companies exhibit stronger internal controls, operate in regions with weaker marketization, have executives with higher environmental awareness, and face greater public environmental concerns. Additionally, social trust shows more significant alleviating effects on rating divergence in the social and governance dimensions of ESG. Economic consequence tests suggest that by mitigating ESG rating divergence, social trust ultimately enhances corporate performance and capital market performance.