Objective:To establish the quality standard of Toutongping capsule.Methods:The thin liquid chromatography was used to identify the four botanical drugs and the contents of paeoniflorin in Toutongping capsule were determined by high performance liquid chromatography.Results:The average content of paeoniflorin was 11.5mg/g.The average recovery ratio and relative standard deviation were 97.7% and 1.80% respectively.