Building engineering fence

The utility model relates to a constructional engineering fence, which belongs to the technical field of building auxiliary facilities and is characterized in that a power device is arranged at the top of a sliding door, the bottoms of two groups of double-hanging pulleys are fixed at the top of the sliding door, and left-right opening and closing are realized through stretching of an electric push cylinder; the power device is connected with the electric cabinet through a data line, a connecting column is movably arranged on the left side of the sliding door, a left grid net is arranged on the left side of the connecting column through a left stand column, a right grid net is movably arranged on the right side of the sliding door, and the right side of the right grid net is welded to the inner side of a right stand column. The button switches are connected with the electric control box through power lines, the electric control box is connected with 220V alternating current or connected with the storage batte