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The laboratory basket sand mill consists of a frame, a shaft, an impeller, a grinding disc, a dispersing disc, and a grinding basket filled with beads. When in working condition, the grinding basket is stationary, and the shaft is equipped with an impeller, grinding disc, and dispersing disc to rotate. The high-speed rotation of the dispersion plate generates negative pressure and strong suction force between the bottom of the grinding basket and the dispersion plate, which sucks out the materials in the grinding basket. At the same time, the impeller installed in the upper part of the grinding basket sucks the material that needs to be ground into the grinding basket. The high-speed rotation of the dispersion plate below the grinding basket pre disperses the grinding material. The grinding plate and grinding beads are pushed inside the grinding basket to grind the material, and the sieve at the bottom of the basket separates the beads from the material, The impeller and dispersion plate inside the grinding basket ensure smooth flow, thus achieving ideal grinding results in a short period of time.