The invention provides an analysis system for cardiac information and analyzing method thereof used for analyzing the cardiac information of a subject. The analysis system comprises a blood pressure measuring module connected to a cuff provided on a testing portion of the subject, used for measuring blood pressure through inflating and deflating the cuff a computing module electrically connected to the blood pressure measuring module, used for measuring a maximum of fixed pressure for the blood pressure pulse on the testing portion a controlling module electrically connected to the cuff and computing module, used for controlling the inflating of the cuff according to the measured fixed pressure for the blood pressure pulse a pulse measuring module electrically connected to the controlling module and a signal processing module electrically connected to the pulse measuring module. The invention provides a simple operating method. Not only the blood pressure can be measured, but also abnormal heart beat rate and abnormal coronary artery frequency can be analyzed. Thus abnormal structures of heart and coronary artery can be detected.
