This study aims to evaluate the clinical efficacy of Danhong injection in patients with septic myocardial injury through a prospective randomized controlled trial. The study will enroll 140 patients meeting criteria for septic myocardial injury, divided into a Danhong injection group and a placebo group. Primary endpoints include changes in myocardial injury markers and improvement rates in cardiac function over 7 days, while secondary endpoints include 28-day mortality rates. This will determine whether Danhong injection possesses myocardial protective effects and provide evidence-based support for expanding its clinical indications.