The invention provides an isolated-type bridge pier anti-collision device which comprises an arc surface anti-collision fairing surrounding the bridge piers and a plurality of protective piles, and each protective pile is arranged surrounding the bridge piers in an arc shape; and each protective pile is respectively sleeved with an annular rubber ring, and the anti-collision fairing is fixedly arranged on each protective pile through the annular rubber ring. The isolated-type bridge pier anti-collision device has the advantages of simple structure and principle, low cost, stable and reliable anti-collision function, long service life of anti-collision facilities, the annular rubber ring can effectively absorb the collision kinetic energy through the greater elastic deformation of the annular rubber ring, and can also rotate surrounding the protective piles when being collided to change the direction of the collision force; and the anti-collision fairing has the fairing function, and also can connect the plurality of protective piles, and the integral anti-collision performance of the protective piles is increased.