Objective To analyze the correlations between serum ferritin (SF) and some blood routine indexes in plateletpheresis donors, so as to screen blood routine indexes which can indicate SF level.Methods 111 plateletpheresis donors from October 2010 to February 2011 in Foshan central blood station were selected. These donors' SF and blood routine indexes were measured by enzyme-linked immunosorbent assay (ELISA) and blood cell analyzer respectively. SPSS statistics 17. 0 was used to analyze the correlations between SF and red blood cell (RBC), white blood cell (WBC), platelet (PLT), hemoglobin (Hb), mean corpuscular volume (MCV), red blood cell distribution width (RDW), mean platelet volume (MPV), platelet-large cell ratio (P-LCR) and platelet distribution width (PDW). Results SF level of plateletpheresis donors was (66. 81 ±36. 63) μg/L and all the donors' RBC, Hb, WBC and PLT were within the normal range. RDW and PLT were negatively correlated to SF (r= - 0. 347, and -0. 315 respectively; P<0. 05), RDW was positively correlated to PLT (r=0. 265, P<0. 05). Conclusion RDW and PLT can indicate SF level in plateletpheresis donors. Paying extra attention to RDW and PLT can contribute to search for latent iron deficiency donors whose RBC and Hb are within the normal range. Key words: apheresis platelets serum ferritin; correlation