AIM: To screen the active constituents in Taohong Siwu Decoction(THSWD) by Systems Pharmacology and to study its protective effect on myocardial injury through cell experiments. METHODS: The TCMSP database and Pharmmaper database were used to retrieve the constituents and active constituent targets of THSWD. The Genecards database was used to retrieve the myocardial injury related targets gene. Then construct and analyze the constituents-disease intersection target network and the contribution value of constituents, and screen out the main active constituents of THSWD acting on the myocardium. Furthermore, CoCl