Objective:To investigate the correlation of platelet and coagulation function with blood stasis syndrome(BSS)in coronary heart disease(CHD).Methods:The protocol for this meta-analysis was registered on PROSPERO(CRD42019129452).PubMed,Excerpta Medica Database(Embase),the Cochrane Library,and China National Knowledge Infrastructure(CNKI)were searched from inception to 1st June,2020.Trials were considered eligible if they enrolled BSS and non-BSS(NBSS)patients with CHD and provided information on platelet and coagulation function.The platelet function,coagulation function,and fibrinolytic activity were compared between the BSS and NBSS groups.Forest plots were generated to show the SMDs or ESs with corresponding 95％CIs for each study.Subgroup analysis and sensitivity analysis were performed to explore potential sources of heterogeneity.Results:The systematic search identified 1,583 articles.Thirty trials involving 10,323 patients were included in the meta-analysis.The results showed that mean platelet volume,platelet distribution width,platelet aggregation rate,platelet P selectin,fibrinogen,plasminogen activator inhibitor-1(PAI-1),thromboxane B2(TXB2),6-keto-prostaglandin F1 alpha(6-keto-PGF1α),and TXB2/6-keto-PGF1αwere higher in the BSS group than in the NBSS group(P＜0.05 or P＜0.01).Activated partial thromboplastin time was lower in the BSS group than in the NBSS group in the acute phase of CHD(P＜0.01).The R and K values in thromboelastography and tissue plasminogen activator(t-PA)and t-PA/PAI-1 were lower in the BSS group than in the NBSS group(all P＜0.01).No difference was found in the results of platelet count,plateletcrit,maximum amplitude,von Willebrand factor,prothrombin time,thrombin time,international normalized ratio,etc.between groups.Conclusions:Increased platelet function,hypercoagulability,and decreased fibrinolytic activity were found among CHD patients with BSS.