To　ensure　the　elderly　can　participate　in　basic　social　activities　in　Beijing,　this　paper　takes　the　subdistrict　of　Dongcheng　of　Beijing　as　an　example,　from　the　perspective　of　traffic　equity　to　analyze　the　differences　of　public　transport　equity.　Through　Gini　coefficient　and　Lorenz　curve　to　quantify　the　equity,　we　build　comprehensive　accessibility,　service　level,　and　location　entropy　indicators　to　measure　the　travel　equity　of　the　elderly　in　regional　public　transport.　The　findings　of　this　work　are　as　follows:　(1)　the　public　transport　availability　of　the　elderly　in　Dongcheng　District　is　relatively　equitable;　(2)　the　spatial　distribution　of　public　transport　resources　in　Dongcheng　District　is　relatively　equitable,　but　the　overall　level　of　location　entropy　is　relatively　low;　and　(3)　the　public　transport　accessibility　in　Dongcheng　District　is　relatively　equitable.　The　research　provides　a　method　to　measure　the　regional　public　transport　equity　and　a　reference　for　the　spatial　distribution　of　public　transport　resources.　©　2020　ASCE.