The　DTV　program　multiplexer　in　system　level　needs　to　combine　many　programs　and　some　message　into　multi-program　TS　for　transporting　in　the　channel.　Because　DTV　program　contains　audio　and　video　signal,　and　the　fluctuation　of　code　rate　is　very　large,　data　packet　is　easy　to　lose　in　the　process　of　combining　them　into　a　data　stream　at　a　steady　rate.　Therefore,　the　research　on　dispatch　algorithm　about　DTV　multiplexer　is　of　vital　importance.　This　paper　puts　forward　a　two-level　joint　dispatching　method　with　monopolizing　and　sharing　buffers,　which　gets　packets　from　monopolizing　buffers　respectively,　and　forms　a　buffer　array　supporting　priority　in　sharing　buffer,　and　then　outputs　at　steady　rate.　Through　verify　this　method　has　less　data　loss　rate　at　equivalent　serve　intension.