The　proposed　complex　logistics　system　is　the　theoretical　innovation　of　supply　chain　management,　Its　research　is　still　in　the　initial　stage.　Based　on　previous　studies,　this　paper　will　continue　to　explore　the　concept,　characteristics　and　structure　of　complex　logistics　system　in　theory;　in　application,　sum　up　the　characteristics　of　complexity　simulation　software　Vensim,　analyze　the　feasibility　of　using　the　Vensim　to　simulate　the　complex　logistics　system,　discusse　the　current　overview　that　Vensim　is　used　to　study　the　complex　logistics　system.　In　the　end　get　the　conclusion　and　propose　directions　for　further　research,　the　purpose　is　to　promote　further　in-depth　study　of　logistics.