It　is　well-established　that　triple-negative　breast　cancer　(TNBC)　is　a　subtype　of　breast　cancer,　characterized　by　a　poor　prognosis　and　aggressive　biological　behavior.　However,　the　available　relevant　data　on　TNBC　in　non-Western　populations　are　limited.　In　order　to　analyze　the　clinicopathological　and　molecular　biological　characteristics　and　observe　survival　and　prognostic　factors,　972　breast　cancer　patients　(156　of　whom　had　TNBC)　who　received　treatment　at　the　First　Affiliated　Hospital　of　Medical　School　of　Xi＇an　Jiaotong　University　and　the　First　Hospital　of　China　Medical　University,　between　January,　2004　and　January,　2007　were　retrospectively　evaluated.　In　the　univariate　analysis,　tumor　size,　TNM　stage,　axillary　lymph　node　status　and　recurrence　or　metastasis　were　identified　as　prognostic　factors　for　7-year　disease-free　survival　(DFS)　and　overall　survival　(OS).　Our　multivariate　Cox＇s　regression　analysis　demonstrated　that　tumor　size　and　axillary　lymph　node　status　were　significant　prognostic　factors　for　7-year　DFS　and　OS.　Notably,　tumor　subgroup　(TNBC　vs.　non-TNBC)　was　a　significant　prognostic　factor　associated　with　7-year　DFS　and　OS　in　breast　cancer.　It　was　suggested　that　TNBC　exhibited　a　worse　7-year　survival　compared　with　that　in　non-TNBC　patients,　most　likely　due　to　its　more　aggressive　behavior　and　insensitivity　to　specific　therapy.