The invention provides a combined drawing table for landscape design, comprising fixed feet, support legs, a desktop board, an automatic expansion mechanism and a sand table display mechanism. The fixed feet are fixed on the lower end surfaces of the support legs, and the support legs are arranged on the desktop On the lower surface of the plate, the automatic expansion mechanism includes a slot 1, an expansion plate 1, a spring 1, a guide slot 1, a guide slider 1, a trapezoidal table 1, an electric telescopic rod, a trapezoidal table 2, a guide slider 2, and a spring 2 , guide groove 2, expansion board 2, card groove 2, ejector rod 2, push block and ejector rod 1, the sand table display mechanism includes a support frame, a sand table carrier plate, a lifting cylinder, a placing box, a groove, a motor, a vertical Compared with the prior art, the present invention has the following beneficial effects: the function of rapid adjustment of the desktop area is realized, and the landscape sand table display is also realized. Function.