Lift shaft protection device

The utility model provides an elevator shaft protection device which solves the problems that a traditional elevator shaft inner protection device is complex to build, and time and labor are wasted. Comprising a blocking rod located in front of a hoistway door opening, the length of the blocking rod is larger than the width of the hoistway door opening, the blocking rod is connected with a connecting block detachably matched with the blocking rod, the connecting block is provided with a limiting rod used for being matched with the front wall of a hoistway, connecting columns are arranged on the two sides of the connecting block, check rings are arranged at the outer ends of the connecting columns, and the connecting block is connected with a supporting frame. A clamping groove matched with the connecting column is formed in the connecting end of the supporting frame, the other end of the supporting frame makes contact with the rear wall of the shaft, and a supporting plate is arranged on the supporting frame.