Abstract: The geometric characteristics and processing experiments of polyploid rice were carried out,because of the current situation that conventional rice huller and mill equipment could not meet the requirements of polyploid rice processing technology. The cot support, pressure between rolls, cot material of the existing huller, as well as the structure parameters of the existing rice mill, such as cot material, grain size of the cot, “gas storage” structure, rice knife material, etc were optimized.The experiment results showed that the rate of broken rice of rice huller and mill was significantly reduced after some structural improvement and parameter optimization, but it was still much higher than that of Early Indica Rice, which needed further structural optimization and research and development.

Key words: polyploid rice, processing equipment, structural optimization