Objective   To discuss the diagnostic value of dual-source CT (DSCT) angiography on detecting coronary anatomy and anomalies.   Methods　The coronary artery imaging data of 638 patients who underwent DSCT angiography were reviewed from May 2009 to October 2009.  Results　For 638 cases, left-side dominance type was about 2.8%（18 cases）, right-side dominance type 89.0%（568 cases）, balanced type 8.2%（52 cases）. The total of coronary anomalies was about 9.4% (60 cases), which included myocardial bridging 32 cases, RCA high takeoff 3 cases, left coronary artery high takeoff 8 cases, accessory coronary artery 8 cases, absence of LM trunk 2 cases, single coronary artery 2 cases, coronary aneurysm of LCX 1 case, coronary fistula between noncoronary sinus and left atrium 1 case, LCX from RCA 1 case, and RCA from left sinus 1 case.  Conclusions　The DSCT can be used to observe coronary anatomy and anomalies accurately, which is a valuable skill to screen early coronary anomalies.