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In order to verify the drying uniformity of the device and study the drying characteristics of paddy, through the multi-factor and multi-level test, taking drying temperature, drum inclination angle, drum speed as the influencing factors, and drying time and drying rate as the evaluation indexes, the influence of the indexes on the drying characteristics of paddy was investigated, and the influence of different drying processes on the paddy crackle ratio was analyzed. The test results showed that the order of the primary and secondary factors affecting the drying time and drying rate of the paddy was as follows: drying temperature, drum inclination angle, and drum speed. The optimal drying process for the drying temperature was 55℃, drum inclination angle was 2°, and drum speed was 40r/min. Verification test through the moisture content uniformity of the K to determine the optimal drying process parameters for the drying temperature of 55℃, drum inclination angle of 2°, and drum speed of 60r/min. Under these conditions, the drying time of the paddy was 191min, the drying rate was 0.036%/min, and the uniformity of moisture content of paddy was 99.6%. The research results can provide certain reference value for the development and process formulation of paddy variable temperature homogeneous drying equipment.