The invention discloses a casting melting device with a splash-proof component. The device comprises a heat-insulating furnace body, a crucible is placed in the furnace body, a heating piece is fixedly arranged on the inner wall of the furnace body, a cover plate is placed at the top of the furnace body, the splash-proof component for feeding is fixedly arranged at the middle end of the top of the cover plate, a movable assembly is arranged between the cover plate and the furnace body, the relative displacement of the cover plate and the furnace body is changed, and a discharging mechanism is arranged between the crucible and the furnace body; and the furnace body made of the heat insulation material can reduce outward loss of heat, so that the influence of the heat on the surrounding environment is reduced, in addition, the feeding safety can be improved by arranging the splash-proof component, molten metal cannot be splashed out and intercepted in the furnace body under the shielding of the splash-proof component, meanwhile, the splash-proof component has certain sealing performance, the heat loss can be prevented in a molten state, heat loss can be prevented in time under the feeding condition, and the high-temperature influence in the feeding process is reduced.