The　paper　expanded　study　on　traditional　VRP　by　introducing　the　concepts　of　economical　distribution　area　and　distribution　outsourcing　according　to　actual　distribution　demand,　and　established　decision　models　of　distribution　outsourcing　from　the　perspective　of　economical　distribution.　It　provided　a　dynamic　particle　swarm　optimization　algorithm　based　on　subgroup　collaboration　for　solving　the　models.　Finally,　the　paper　testified　effectiveness　of　the　models　and　its　solution　algorithm　with　experiment　of　calculation　examples.　©　2010　IEEE.