To investigate the persistence of SARS-CoV-2 on the surface of salmonto provide data for the control of COVID-19. Methods A 100 μL droplet of virus culture was pipetted ontothe surface of salmon and then incubated at 4℃ or 22℃ for up to 5 days. A 100 μL droplet of virus culture was also pipetted into 4% NaCl imitation seawater and then incubated at 4℃ and 22℃ for up to 9 days.The infectivity of virus collectedfrom salmon surfacesand from the 4% NaCl brine was titrated using the Vero E6 cell line. Results The virus on salmon surfacesretained viability for 4days at 4℃ , and for 1 day at 22℃ ; 50% of infectivity was lost after 1 day at both temperatures.Virus in 4% NaCl imitation seawaterretained viability for 7 days at 4℃ and for 2 days at 22℃ ; 50% of infectivity was lost after 1 day at both temperatures. Conclusions SARS-CoV-2 remained viable on salmon surfaces for 1-4 days at 4℃ and 22℃ . SARS-CoV-2 remained viable in 4% NaCl imitation sea water for 2-7 day sat 4℃ and 22℃.