26.86%。In order to solve the problems of low head rice yield (HRY), high energy consumption and unable to reach the anticipate target after once moisture conditioning treatment (MCT) when milling the stored desiccated low-moisture brown rice, a study on the laws of effects that different amounts of moisture, the temperatures during the rice moisturizing and the time between the two MCT have on HRY during the twice MCT for brown rice was conducted with the materials of brown rice (the moisture content was 12%). Based on the single-factor tests, composite tests of quadratic orthogonal rotation were designed and the experimental data was analyzed with SAS. From the testable experiments, it was proved that HRY increased by 15.42% and the energy consumption decreased by 26.86%. When the moisture increased by 1.56% each time, the temperature was 29.6℃and the time between the two experiments was 64.6min.