The invention belongs to the technical field of casting and discloses a smelting and casting device for a laboratory. The smelting and casting device comprises a crucible holder, a smelting crucible,a support and a pouring pull rod, wherein the smelting crucible is arranged on the crucible holder; the support is connected to the crucible holder and is used for supporting the crucible holder in the smelting position, or the smelting crucible and the crucible holder are transferred through the support, and the crucible holder can rotate relative to the support, so that metal solution in the smelting crucible is poured into a mold. One end of the pouring pull rod is detachably connected to the bottom of the crucible holder, the pouring pull rod is pulled, and thus the smelting crucible can be driven to rotate relative to the support. The support and the pouring pull rod are arranged, thus the metal solution in the smelting crucible can be poured directly, transfer with a casting ladle isnot needed, too much heat loss of the smelted metal solution is avoided, the smelting and casting device is suitable for the smelting and casting process of a small amount of metal in the laboratory,and casting quality can be improved.