Since the reform and opening up, the city has steadily promoted the renovation of old maternity houses, towns and villages in response to the call of the state, thus promoting urban renewal, realizing urban economic development, industrial upgrading and people's livelihood improvement. The living density of economic housing is high, and the quality needs to be further optimized. However, the current urban renewal needs to improve the living quality of housing to serve the people. Therefore, when planning, constructing and renovating the interior space of public housing and meeting people's basic living conditions, people's intuitive feeling of the environment should be put first, rather than excessive attention to formal beauty—taking the EDF. de Alameda da Tranquilidade in Macau, as an example, based on the theory of space syntax, this paper conducts a convex space analysis and research on the interior space form of the first building of EDF. de Alameda da Tranqui-lidade, including the global integration degree, local integration degree (R=3,6), connectivity, intelligibility, control and Mean Depth, analyze the areas with higher integration, connection value and control value and lower areas, and make suggestions for future plane optimization, related The recommendations also apply to the second and third buildings of Yongning Plaza Building, providing better reference value and reference for relevant government departments.