Method to determine morphine in compound licorice buccal tablets with solid extraction column HPLC was established.HPLC method was adopted, with chromatog. column of Alltima C8 and detection wavelength of 220 nm, and the precision and recovery of the method were calculatedWhen the morphine content in compound licorice buccal tablets was between 5-30 μg/mL, its linear relationship with the peak area was good (A=1.42×105C-0.4595, r=1).The average recovery was 99.7%.The solid extraction column HPLC method is simple, rapid and accurate in determination of morphine in compound licorice buccal tablets.