The invention discloses a concrete eccentric column testing device. The concrete eccentric column testing device comprises a water tank, a water pressure control system, a water pipe connector, an oilpressure control system, and a hydraulic cylinder. The water tank comprises a tank body and a tank cover. An installing hole is installed at the center of the tank cover. The hydraulic cylinder is asingle piston rod hydraulic cylinder. A piston rod passes through the installing hole from the upper part of the tank cover and enters the tank body, and the hydraulic cylinder is sealed and fixed onthe tank cover. The tank cover is further provided with a valve. A center of a horizontal wallboard, adjacent to the upper part, at the left end of the tank body is provided with a tank body water inlet hole which is communicated with the water pressure control system through the water pipe connector. A center of a bottom plate of the tank body is provided with a window hole. A shaft sleeve with aflange A is installed in the window hole. Between the lower plane of the flange A and the bottom plate of the tank body, a support screw bolt and a sealing bag are installed from outside to inside. The concrete eccentric column testing device is used for performing a durability test on a reinforced concrete member under the action of salt and alkali corrosion and ballast multi-coupling.