Recent research has primarily focused on the genealogical relationship between ancestral temple painting and its spatial carriers, highlighting a shift in perspective from artistry to symbolism to kinship. While some scholars have noted the influence of ritual culture on architectural painting, few have explored its kinship relationship with architectural carriers. By incorporating relational sociology theory, this study chronologically reviews events influencing the formation of ancestral temple ritual culture, constructs a developmental model, and conducts case studies on the ethicality of architectural painting art, thus establishing a relational sociology analysis framework. Findings: (1) Ancestral temple architectural painting exhibits the ethicality and educational value inherent in Confucian concepts; (2) Themes such as immortal life, literati and scholars, and common folk simplicity highlight the spiritual and material kinship of ancestral temple painting. The vocabulary used in titles such as "He (rapprochement-和)", "He (reunification-合)", "wealth (财)", "happiness (乐)", "blessing (福)", and "longevity (寿)" reveals a positive transmission of Confucian values; (3) The five main artistic expressions of ancestral temple painting are metaphor through objects (借物喻意), the personification of events (以人喻事), using the past to illuminate the present (借古喻今), expressing aspirations through objects (托物喻志), and pun-based symbolism (谐音寓意); (4) The decorative elements of ancestral temples correspond to the forms of their painting art, with the former extending the space of the tomb sacrificial system and the latter representing artistic inheritance. The development of ancestral temple architecture has formed dual developmental contexts centered on ritual culture and supplemented by academic dissemination, fluctuating with the status of Confucianism. The relational sociology model shows that the political aspects of ancestral temples form a sub-lineage of their ritual culture, closely linked to reforms in the educational system and transformations in building functions, further influencing architectural form and decorative art.