From　the　new　perspective　of　service　trade　efficiency,　this　paper　makes　a　horizontal　comparison　in　efficiency　evaluation　among　Shanghai　Port,　Singapore　Port,　and　Busan　Port　to　achieve　the　strategic　goal　of　the　free　trade　port.　For　this,　the　Interactive　Linear　and　General　Optimization　Solver　(LINGO)　was　applied　to　specific　data　processing.　The　innovations　of　this　study　are　the　use　of　the　evaluation　scores　in　the　World　Economic　Forum　for　the　efficiency　of　transportation　service,　quantification　of　the　original　nonquantitative　evaluation　items,　and　the　optimized　selection　of　the　calculation　mode　by　LINGO,　which　ensures　the　comparability　of　the　results.　The　results　show　that　Singapore　Port＇s　pure　technical　efficiency　(PTE)　and　scale　efficiency　(SE)　are　the　highest,　and　the　data　envelopment　analysis　(DEA)　evaluation　is　efficient.　In　recent　years,　Shanghai　Port＇s　PTE　is　little　higher　and　the　SE　declines,　and　the　DEA　evaluation　has　not　been　efficient.　The　input　indicators　are　redundant　but　still　improving　year　by　year.