The traditional rural architectural decoration art in the border area of Jiangsu, Shandong, Henan and Anhui carries profound historical and cultural significance. In the context of regional cultural heritage protection, exploring its modern implementation strategies is of great importance for inheriting regional culture, enhancing local cultural identity, and promoting sustainable development of regional culture. This article analyzes the characteristics of this traditional decorative art, and explores the practical path of protecting this unique architectural art form and promoting regional cultural sustainable development from multiple dimensions such as architectural restoration, cultural heritage education, and cultural industry development. By constructing a comprehensive evaluation model with semantic similarity and pattern feature similarity as the core evaluation elements, quantitatively evaluating the symbolic inheritance status of decorative patterns, and analyzing the differences in comprehensive inheritance degree of different patterns through data calculation models. Through modern practical paths such as building restoration and reuse based on the principle of authenticity, constructing a cultural heritage education system, developing cultural industries and brand building, and digital protection and dissemination, traditional local architectural decoration art in the border areas of Jiangsu, Shandong, Henan, and Anhui can be effectively protected and inherited, injecting new vitality into the sustainable development of regional historical and cultural heritage.