A raw rubber production device comprises a dehydration kettle, a mixing machine, a polymerization reactor, a low molecule removing device and a discharging machine, wherein the bottom of the dehydration machine is connected with the bottom of the mixing machine which is connected with the polymerization reactor, the polymerization reactor is connected with the top of the low molecule removing device, and the bottom of the low molecule removing device is connected with the discharging machine; the raw rubber production device further comprises an auxiliary material pretreatment mechanism, the auxiliary material pretreatment mechanism comprises a filter, a stirring tank and a measuring tank which are connected in sequence, and the measuring tank is connected with the dehydration kettle. With the adoption of the raw rubber production device, the production efficiency of raw rubber can be improved, the product quality is improved, the production cost is decreased, and the environment pollution is reduced.