Bridge pier deviation monitoring device and method

The invention discloses a pier deviation monitoring device and method. The monitoring device comprises a displacement transmission rod, a pointer, a top measuring steel ruler and a bottom measuring steel ruler. The top measuring steel ruler is arranged on the top face of the anti-collision guardrail, the bottom measuring steel ruler is arranged at the bottom of the outer side face of the anti-collision guardrail, and the center point of the top measuring steel ruler and the center point of the bottom measuring steel ruler are located on the same vertical straight line. The bottom end of the displacement transmission rod is arranged on the side of a capping beam of the pier; the top of the displacement transmission rod is provided with a pointer; the initial pointing direction of the pointer corresponds to zero graduation lines of the top measuring steel ruler and the bottom measuring steel ruler, and deviation and inclination of the pier are monitored by recording the graduation lines of the top measuring ste