Background: The association of platelet transfusion and short-term mortality in patients with sepsis-induced thrombocytopenia remains unclear. Therefore, we intended to explore whether platelet transfusion could make a difference for patients with sepsis-induced thrombocytopenia.Methods: The study was based on the Medical Information Mart for Intensive Care (MIMIC) III database. Sepsis patients were divided into those with or without platelet transfusion (Platelet Transfusion group [PT group] and No Platelet Transfusion group [NPT group], respectively) during hospital stay. The primary outcome was 28-day all-cause mortality, and secondary outcomes were length of ICU stay (LOS-ICU) and survival days of 28. Propensity-score matching was used to reduce the imbalance. Results: We included 1733 patients: 296 patients in the PT group and 1437 patients in the NPT group. Overall, 655 patients died by day 28. After propensity score matching, 294 paired patients constituted each group. 28-day mortality did not decreased in PT patients comparing to NPT patients (120 [40.54%] vs. 535 [37.23%] deaths; P=0.29). LOS-ICU was similar between PT group and NPT group (5.84[2.68-11.78] vs. 4.94[2.18-12.72]; P=0.44). After confounders were adjusted for, it showed no difference between PT group and NPT group in 28-day mortality (hazard ratio [HR], 1.28;95% confidence interval [CI], [0.96, 1.17]; P=0.09) or lOS-ICU (odd ratio [OR], 0.09; 95%CI, [-1.45, 1.62]; P=0.91). Survival at 28 days showed no difference between the groups according to Kaplan-Meier survival estimates. After propensity score matching, platelet transfusion was also not associated with 28-mortality or LOS-ICU.Conclusions: In the propensity score-matched analysis, there is no evidence that platelet transfusion is beneficial for patients with sepsis-induced thrombocytopenia, neither 28-mortality nor LOS-ICU.