Objective:To make clear which drugs can cause drug eruption.Methods:Clinical analysis was made based on the patients data regarding the types of the drup eruption and the severity of liver impairment.Results:There are four types of drugs which can cause drug eruption:antibiotics (55.3%),antipyretic analgesic(26.6%)，Chinese medicine (9.6%) and biological preparations (8.5%).The drug eruptions usually manifested as unticaria,measles-like eruption,multiform erythma and stable eruption.Conclusion:The main allergic drugs are antibiotics and antipyretic analgesic.However,attention should also be payed to the Chinese medicine and biological preparations.