To solve the problems of public service facilities in traditional villages, such as lack of personality in design, single function and poor maintenance, the work aims to propose a comprehensive quality optimization strategy for age-friendly public service facilities based on the improved G1-EWM-TOPSIS model.G1 method combined with expert evaluation was used to determine the subjective weight of each index, and entropy weight method (EWM) was used to objectively evaluate the weight distribution of the current facilities. With the public service facilities in a traditional village, Shichuangou Village as an example, the comprehensive quality evaluation results of the public service facilities of the village were analyzed, and the improved TOPSIS model was used for comprehensive evaluation and ranking, so as to select the optimal facility allocation scheme. The improved G1-EWM-TOPSIS model was used to evaluate the satisfaction of the comprehensive quality of public service facilities in traditional villages, which could accurately solve the demand weight of residents, scientifically transform the design parameters, objectively evaluate the design scheme, and greatly optimize the experience and satisfaction of the age-friendly public service facilities in traditional villages. This study provides a reference for the optimization of public service facilities in traditional villages, and also provides a systematic academic paradigm and research path for the study of public service facilities in traditional villages. This approach not only has important guiding significance in practice, but also provides a new perspective and methodological support for further academic discussion.