Public-Private Partnership (PPP) models play a pivotal role in advancing infrastructure development at the local level, particularly in town and rural areas. Scientific, comprehensive, and objective performance evaluation of such projects is crucial for optimizing resource allocation and enhancing long-term sustainability. This study introduces the Environmental, Social, and Governance (ESG) framework to construct a multidimensional evaluation index system. The Entropy Method is employed to determine objective indicator weights, combined with the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), to evaluate several typical local town and rural PPP construction projects in Guangdong. The evaluation results clearly demonstrate project performance rankings, identify key strengths and weaknesses, and provide theoretical and practical references for project performance management and ESG-oriented optimization of PPP models.