Due to the different social systems in Guangdong，Hong Kong and Macao，the framework of the old-age security system is different. At this stage，the middle-level policy coordination should be actively promoted in the field of pension security. Since the promotion of the construction of the Guangdong-Hong Kong-Macao Greater Bay Area，Guangdong，Hong Kong and Macao have established central，provincial and municipal policy coordination groups. They are all aware of their respective problems in the field of old-age security，and through consultations，they have determined general policy goals，formulated a series of policies and have achieved a certain degree of resource integration. However，the special agency for social policy coordination within the Greater Bay Area has not yet been established，the pension security policy coordination plan has not yet been put on the agenda，the specific issues of pension security in the three places have not yet been investigated and studied，the portability of the elderly economic security has not yet been explored，and the integration of resources is at a Initial stage. In this regard，the role of government at all levels，social organizations，economic organizations，mass media and other policy entities should be brought into play to promote the coordination of pension security policies in the Guangdong-Hong Kong-Macao Greater Bay Area.