Abstract: As a starting point of the way to capital, Liao Nanjing is an important transition in the development of Beijing.New ruler and new status bring about many changes and new features in architectural culture.This paper tries to analyze the culture relationship between Liao Nanjing and Tang Youzhou.It indicates that the prominent political nature, obvious multi-ethnic cultural blending, wonderful temple culture, excellent building techniques are the most important characteristics of Liao Nanjing architectural culture.