Through comprehensive renovation，the old communities in Beijing have greatly improved the level of safety and livability，and entered the stage of improving the functional quality of the community，in which the construction of public space is an important link. The old community has insufficient supply of public space resources，unreasonable planning and layout，low quality，low utilization rate，and insufficient follow-up maintenance due to the lack of effective property management. Therefore，it is proposed that taking demand as the guide，scientifically plan the community public space integrating all ages，excavate the community public space resources in a three-dimensional and intensive way，improve the cultural quality of community public space，promote the co construction，CO governance and sharing of public space，and strengthen policy support.