This paper investigates 145 TPL companies in Mainland and studies the influencing factors of Third Party Logistics performances. LISREL structural equation model estimation results illustrate that: Geographical spread and range of TPL’s service sites have positive effects on financial performance and negative effects on operational performance. Information Technology applications has positive effects on operational performance and no significant effects on financial performance; But Information Technology infrastructures has no significant effects on both financial and operational performance. Managers’ competence has positive effects on financial performance and operational performance. Finally discusses the reasons lead to these results and puts forward some suggestions.