The invention provides a beewax coating device for a square table top. The beewax coating device for the square table top is characterized by comprising an outer connecting body, a linear walking device arranged outside the outer connecting body and a beewax melting and coating device arranged in the outer connecting body; the outer connecting body is a topless and bottomless rectangular frame, and connecting sleeves are arranged at the left end and the right end of the outer connecting body; the beewax melting and coating device comprises a container provided with an extending body; a beewax melting bin is arranged in the container; a heating block bin is arranged in the beewax melting bin; the lower portion of the beewax melting bin is connected with a collecting bin; a plurality of discharging pipes are arranged on the lower portion of the collecting bin; a discharging blocking piece is arranged on the lower portions of the discharging pipes. The beewax coating device for the square table top has the beneficial effects of being simple in structure and use method and particularly suitable for square and large-area produced beewax; the labor intensity of workers is lowered, and the working efficiency is improved. In addition, a wax body produced through ironing of the device has the characters of being even in wax ironing, clear in wood texture and high in transparency.