OBJECTIVE:To improve the quality standard of Vitamin C yinqiao tablet, and to provide a theoretical basis for improving the standards and quality of medicines. METHODS:HPLC in Chinese Pharmacopoeia (2010 edition) was conducted to determine the content of chlorogenic acid, arctiin, vitamin C, acetaminophen, chlorphenamine maleate in Vitamin C yinqiao tablet from multiple manufacturers. RESULTS:There were big differences of the 5 components in Vitamin C yinqiao tablet among different manufacturers. CONCLUSIONS:The content determination method for Vitamin C yinqiao tablet contained in Chinese Pharmacopoeia remains to be further improved; and the manufacturers should pay attention to the process of production and quality of traditional Chinese medicinal materials of the preparation.