The present invention provides an anti-ESD elastic plate comprising a first conducting part, and a pair of second conducting part. The first conducting part has at least one projection structure. The two second conducting parts are connected respectively to the two lateral sides of the first conducting part. Each of the second conducting part further has a second conducting element and a press element, whereas the second conducting element is configured with a second projection structure and the pressing element is disposed aside the second conducting element. In another embodiment, the present invention further provides an anti-ESD device for conducting ESD by arranging the anti-ESD elastic plate as a conducting medium that is disposed at the boundary between an opening of a housing and a cover for sealing the opening.