The utility model discloses a door ladder treading test bench. The test bench comprises a test rack, an execution mechanism, an automatic control system and a feedback sensor. Supporting stand columnsare arranged on the two sides of the test rack. A horizontal cross beam is fixed to the supporting stand column, the executing mechanism is fixed to the cross beam, stretching and retracting of an electric push rod of the executing mechanism are controlled by the automatic control system, the feedback sensor comprises a force sensor and a displacement sensor, and the force sensor and the displacement sensor are in electric signal connection with the automatic control system. Stand columns of the test bed are arranged on the two sides of a door ladder test piece in a suspended state, and an electric push rod of the executing mechanism is located over a step of the door ladder test piece; and the automatic control system drives the electric push rod to apply simulated treading pressure to the steps of the door ladder test piece according to a preset simulated treading pressure loading curve.