Filoviruses are associated with acute fatal hemorrhagic diseases of humans and/or nonhuman primates when they spill over from their wildlife reservoir hosts. The family consists of two genera: Marburgvirus and Ebolavirus[1,2]. Five species of ebolavirus have been identified: Ivory Coast ebolavirus, Sudan ebolavirus, Zaire ebolavirus (EBOV), Reston ebolavirus (RESTV) and Bundibugyo ebolavirus. RESTV is the only known filovirus that does not cause severe disease in humans; however, it can be fatal in monkeys [3]. In 2009, infection of domestic pigs by RESTV was reported in the Philippines [4]. It was speculated that RESTV infected monkeys and pigs from an as yet unidentified host. Bats have been implicated as reservoirs for Marburgvirus [5] and Ebolavirus [6] in Africa and Asian country, the Philippines [7]. Previously, we have detected antibodies to the severe acute respiratory syndrome virus [8] and henipavirus [9] in bat sera in China. In this study, we conducted a surveillance study for the presence of ebolavirus in Chinese bat populations.