The invention relates to the field of rail traffic, in particular to a floating way bed plate and a vibration isolating system comprising the same. The floating way bed plate can be inspected and maintained more conveniently and comprises a rectangular plate main body, two rows of rectangular rail bearing platforms and multiple rectangular inspection ports, the rectangular rail bearing platforms are arranged on the upper surface of the plate main body and arranged on two opposite sides of the central axis of the plate main body respectively, multiple rail bearing platforms in each row are separated from one another and linearly distributed along the direction parallel to the central axis, and the rectangular inspection ports are distributed along the central axis and penetrate the floating way bed plate.