 1 Measure vital signs; 2Accomplish all the examination items: Blood routines, Urine routines, Stool routines Occult blood, Hepatorenal function AST, ALT, TBIL, ALP, γ-GT, BUN, Cr, Four coagulation tests TT, PT, APTT, FIB, Blood fat TC, TG, HDL-C, LDL-C, 12 leads electrocardiogram, Seattle Angina Ques-tionnaire SAQ. Additionally, premenopausal women receive urine pregnancy test; 3 Exercise treadmill testing ETT: around am. 10:00 Note: Just for the patients who need ETT; 4 Record symptoms and signs Score of syndrome of Chinese medicine and Score of angina; 5 Randomize and allocate drug number; 6 Hand out the drugs for 2 weeks and record card of anginanitroglycerin used; 7 Advise patient return visit 2 weeks later. 1.3 Interview 2 142 Day 