The sudden cholera outbreak disrupted the normal study and life of Hainan University students, and the university has currently entered a closed management status. Hainan University, where the cholera outbreak occurred, is the second outbreak point in Hainan Province after the cholera outbreak in Danzhou City. Since October 29, a few students at Hainan University have experienced diarrhea. As of 12:00 on November 1, a total of 30 people with diarrhea symptoms have been found, among which 22 patients with milder symptoms are isolated in the Hainan University Hospital for sampling and preventive medication, while 8 patients are isolated and treated in the infectious disease department of Haikou People's Hospital. Verified by the city hospital and the city disease control center laboratory, there are 7 confirmed cases of cholera and 1 suspected case (positive by rapid method). The epidemic has currently been brought under control.