Protective fence convenient to disassemble and assemble and used for municipal engineering road construction

The utility model discloses a municipal engineering road construction protective fence convenient to disassemble and assemble, which comprises two bottom plates, the middle ends of the tops of the bottom plates are fixedly connected with upright posts, the inner sides of the upright posts are provided with slots, the inner cavities of the slots are inserted with insertion strips, the inner sides of the insertion strips are provided with isolation strips, and the isolation strips are provided with isolation strips. And through holes are formed in the inner surfaces of the front end and the rear end of the bottom plate correspondingly, and cross rods are inserted into inner cavities of the through holes correspondingly. Firstly, all the first fasteners are unscrewed, then the two transverse rods are inserted into the through holes in the front end and the rear end of the bottom plate respectively, the bottom plate is fixedly connected to the left side and the right side of the outer surface of the transverse ro