OBJECTIVE: To establish a method for the simultaneous determination of andrographolide, quercetin-3-O-glucoside, dehydroandrographolide and kaempferol-3-O-glucoside in Compound chuanxinlian tablet. METHODS: HPLC was performed on the column of Phenomenex C18 with mobile phase of acetonitrile - 0.1% phosphoric acid aqueous(gradient elution) at a flow rate of 1.0 ml/min, the detection wavelength was 225 nm for andrographolide, 335 nm for quercetin-3-O-glucoside and 254 nm for dehydroandrographolide and kaempferol-3-O-glucoside, column temperature was 25 ℃, and the volume injection was 10 μl. RESULTS: The linear range was 0.111-2.770 μg for andrographolide(r=0.999 9),0.064-1.605 μg for quercetin-3-O-glucoside (r=0.999 9), 0.086-2.138 μg for dehydroandrographolide(r=0.999 9) and 0.050-1.260 μg for kaempferol-3-O-glucoside(r=0.999 9); the limits of quantitation were 0.48 ng, 0.88 ng,0.93 ng and 1.03 ng, the limits of detection were 0.79 ng, 1.15 ng,0.96 ng and 1.07 ng,respectively;RSDs of precision, stability and reproducibility tests were lower than 2.0%;recoveries were 96.57%-100.30%(RSD=1.3%,n=9),95.04%-98.87% (RSD=1.3%,n=9), 95.74%-102.92% (RSD=2.4%,n=9) and 96.73%-100.95%(RSD=1.6%,n=9),respectively. CONCLUSIONS: The method is sensitive, reliable and reproducible, and can be used for the simultaneous determination of andrographolide, quercetin-3-O-glucoside, dehydroandrographolide and kaempferol-3-O-glucoside in Compound chuanxinlian tablet.