The utility model discloses a crystallization system for production of rice bran oil. The crystallization system comprises a plurality of crystallizing tanks, wherein each crystallizing tank consists of a shell, coil pipes arranged in the shell and a stirring device arranged on the shell; connectors are arranged on the shell; the crystallizing tanks are communicated with one another in sequence by virtue of the connectors; an oil outlet pipe is arranged at the lower part of each crystallizing tank and is connected with a filter by virtue of a conveying pipe, and a vacuum pressure conveying device is connected with one end, close to the filter, of the conveying pipe; the vacuum pressure conveying device comprises a pressure conveying tank, and the upper part of the pressure conveying tank is communicated with the conveying pipe by virtue of a pressure conveying connecting pipe; a vacuum connecting pipe is arranged at the top part of the pressure conveying tank and is connected with a vacuum pump; and a secondary conveying pipe is arranged at the bottom of the pressure conveying tank and is communicated with the conveying pipe. According to the crystallization system disclosed by the utility model, the vacuum pressure conveying device is additionally arranged on the conveying pipe and is connected into a vacuum system to perform conveying, so that the conveying efficiency is greatly improved, and meanwhile, oil can be thoroughly pumped and can be prevented from being accumulated in the crystallizing tanks to avoid loss of crude oil, thereby improving the oil yield.