As an emerging RNA virus in pig industry，Senecavirus A（SVA）has been found in many countries，including the United States，Canada，Brazil，Columbia，China，Thailand，Vietnam，etc. In China，the virus has been reported by 15 provinces/autonomous regions/municipalities since 2015 when it was firstly found in Guangdong，indicating a wide prevalence in different regions. It was difficult to identify the clinical symptoms of infected pigs that were similar to those of foot-and-mouth disease，swine vesicular disease and vesicular stomatitis，hence the methods of etiology and biology were widely used by SVA detection laboratories. No any corresponding commercial vaccines were available，but recombinant live vaccine candidate strains and oil-adjuvan inactivated candidate vaccines had been developed and reported. Considering current difficulty in prediction of the development of SVA，it was necessary to pay attention to its global prevalence，and to study its pathogenesis and immune mechanism so as to develop effective vaccines and diagnostic reagents soonest. In this paper，the etiology，clinical symptoms，epidemic status，diagnostic methods，vaccine research were discussed for the purpose of providing some references for the prevention and control of SVA in China.