Warning guideboard convenient to disassemble, assemble and transport

A warning guideboard convenient to disassemble, assemble and transport comprises a signboard. The mounting seat is fixed on the side wall of the label; a base; the positioning seat is fixed on the base; the two limiting blocks are arranged in the circumferential direction of the side, opposite to the base, of the label body, the two limiting blocks are symmetrically distributed, and a containing groove is defined by the label body, the base and the two limiting blocks; when the supporting rods are unfolded, the supporting rods are connected end to end and arranged between the sign and the base, and when the supporting rods are folded, the supporting rods are arranged in the containing groove side by side. The folding and unfolding device is compact and reasonable in structure and convenient to operate, the folding state and the unfolding state can be achieved, in the folding state, the structure is compact and reasonable in distribution, a round-cake-shaped structure is formed, and the whole folding and unfol