OBJECTIVE： To investigate the characteristics and regularity of hepatotoxicity induced by quinolones， and to provide reference for clinical use of drug safely. METHODS： Using “quinolone” “floxacin” “hepatotoxicity” “hepatic injury”as retrieval words， relevant literatures about hepatotoxicity induced by quinolones were retrieved from domestic and foreign databases as CNKI， Wanfang， VIP， PubMed （during database establishment to 31th， Dec. 2017）. Those literatures were summarized and analyzed. RESULTS： A total of 59 valid literatures were collected， including 61 cases of hepatotoxicity induced by quinolones， 8 types of drugs as ciprofloxacin， moxifloxacin， ofloxacin， lomefloxacin， norfloxacin， levofloxacin， gatifloxacin and enoxacin. Ciprofloxacin， levofloxacin， moxifloxacin and ofloxacin were the most common drugs that caused hepatotoxicity， involving 19， 13， 11， 7 cases， respectively； accumulative constitute ratio was 81.97％. The ratio of male to female was 1.54 ∶ 1， and hepatotoxicity always happened at the age of 61 to 80 （30 cases， 49.18％）. Primary diseases of 46 cases were single disease （75.41％）， and mainly were infection of respiratory system and urogenital system. There were 15 cases of combined disease （24.59％）. Thirty-one cases used quinolones alone， most of which was ciprofloxacin. There were 30 cases of drug combination. Thirty-four cases were given drug intravenously and mainly were domestic cases. The hepatotoxicity first occurred within 10 minutes after administration and at the latest 8 weeks after administration. Forty-nine patients suffered from hepatotoxicity within 10 days after medication， accounting for 80.33％. Besides general fatigue， nausea and vomiting， clinical symptoms also included abnormal elevation of alanine aminotransferase， aspartate aminotransferase and total bilirubin，etc. Fifty-four patients were improved after withdrawal or symptomatic treatment， while 7 patients died. The results of causality evaluation of drug-induced hepatic injury showed that there were 4 probably association cases， 45 likely association cases and 12 possible association cases. CONCLUSIONS： The hepatotoxicity caused by quinolones is related to drug variety， patient’s age， primary disease， drug combination and route of administration， and mostly occurs within 10 days after administration. Great importance should be attached to patient’s liver function indexes， strengthen medication monitoring， and carefully combined use of drugs.