The utility model discloses a damping protection device for wet -type electrostatic precipitator anode plate, fixed axle including anode plate and fixed anode board, the tip of anode plate is equippedwith the couple, the fixed axle passes the couple, still including big footpath hose and path hose, path hose cover is established on the fixed axle, big footpath hose cover is established on the path hose, the couple is hung on big footpath outer wall of hose, the soft bore of pipe of path is greater than the diameter of fixed axle, the soft bore of pipe in big footpath is greater than the softbore of pipe of path, follow be equipped with the sand grip of two curls on the path hose lateral wall, the sand grip comprises a plurality of fore -sets, highly rising gradually along the fore -set on every sand grip. The utility model has the advantages that: adopt this device back, can effectually give provides soft between anode plate and the fixed axle and is connected, eliminates the vibration of anode plate to protective anode board surface evenness of form and pole pitch prevent simultaneously that warping from appearing in anode plate bottom reinforcing rib.