Ancestral temples are important spaces for village development, which contains profound clan culture. In the process of urbanization, the traditional spatial form of ancestral temples has been unable to adapt to the development of the times, and the existing spatial form of ancestral temples is not the optimal form. This papers carries out quantitative analysis based on three quantitative criteria of integration degree, selection degree and total depth value of spatial analysis. Using the strategies of "topological model" and "convex space model" in space syntax, this papers makes a comparative study on the specific cases of Chen Clan Ancestral Temple in Guangzhou and Yu Zhongxiang Ancestral Temple in Kaiping. Through the research, it is found that there are similarities and differences between the Chinese-style ancestral temple and the ChineseWestern hybrid style combination ancestral temple. According to the calculation of Depthmap software, the scientific analysis data were obtained, and finally the optimization strategies of "propagation-type" and "inheritance-type" were proposed for the spatial forms of Chen Clan Ancestral Temple in Guangzhou and Yu Zhongxiang Ancestral Temple in Kaiping.
Keywords:Spacesyntax; Ancestral temples; Spatial form; Optimization strategy Declarations of interest: There are no conflicts to declare. 1 Background and introduction of Chen Clan Ancestral Temple in Guangzhou and Yu Zhongxiang Ancestral Temple in Kaiping 1.1 Background Located at No. 34 Enlongli, Zhongshan Seventh Road, Liwan District, Guangzhou City, Guangdong Province, Chen Ancestral Temple was built and completed during the reign of Guangxu in the late Qing Dynasty. Chen Ancestral Temple is a joint venture of the Chen clan, and it is the largest existing ancestral temple building in Guangfu area. Chen Ancestral Temple is the Guang Dong folk arts museum. It belongs to the national key cultural relic protection unit and is rated as the national AAAA historical scenic spot. Yu Zhongxiang Ancestral Temple in Kaiping is located in Fengcai Middle School, Taiping Road, Kaiping City, Jiangmen City, Guangdong Province. Surrounded by water on three sides, the building has an open river, extending to the Tanjiang River like a dragon at sea. It was built in the late Guangxu years of the Qing Dynasty and completed in the three years of the Republic of China. The Yu Zhongxiang Temple in Kaiping was built by the Yu clan in Taishan and Kaiping of Guangdong Province to commemorate their ancestor Yujing. It is now a provincial protected scenic spot. Guangzhou is a world-famous port. People from Guangfu migrated overseas in the Tang Dynasty with the continuous promotion of trade along the "Maritime Silk Road" (Mo Yuling & Sun Enle, 2014). Guangzhou and Kaiping area belong to the Guangfu culture, and the Tang Dynasty people called this area Guangfu. In the Ming