The invention discloses a sand cultivation mode, comprising the steps of setting planting ditches in a protected land, wherein the planting ditches are 0.8 m spaced, and a drain ditch 0.35 m in depthis arranged at the outer side of each planting ditch; covering the inside of the drain ditches with mulch, fixing well, and setting an underground liquid reservoir at the tail end, except for the cultivation area, of the protected land; allowing water in the planting ditches to smoothly flow from inside to outside, and covering the inside of the planting ditches evenly with HDPE (high-density polyethylene) to tightly wrap the two sides, inner side and outer side of the planting ditches; mixing well slag and sand in the mass ratio of 3:5, spreading the mixture evenly into the planting ditches,laying substrate, using water mixed with a disinfectant to irrigate the planting ditches by flooding, and washing the substrate twice; laying dripper tubes above the substrate, and covering with mulch. The sand cultivation mode has low input cost; the slag and sand can be taken in situ; the sand cultivation mode is simple to perform and is easy for common people to accept; the sand cultivation mode provides better convenience and high speed, and saves time and labor.