Abstract: To investigate the effects of soaking and drying technology in the process of semidry milling on the quality indexes and characteristics attributes of glutinous rice flour.Using glutinous rice as raw material,select different kinds of soaking liquid,soaking time,soaking temperature and drying temperature to treat the glutinous rice for grinding,then the particle size,color,water retention capacity of the glutinous rice flour and the light transmittance of their paste,freeze-thaw stability were measured.The results showed that after soaking with sodium bicarbonate and citric acid,the glutinous rice flour had a larger particle size,yellowish green color,and the powder was not brighter,and the water retention capacity and freeze-thaw stability lowered.After soaking with distilled water and tap water,there was no significant difference in the quality indexes of glutinous rice flour.Extending the soaking time,the glutinous rice granules were softened,the powder had small particle size and white color,while the water retention capacity,transparency increase,and the freeze-thaw stability were improved.When the soaking temperature was lower than 40℃,the soaking temperature increased,the grain size of the glutinous rice powder decreased,the color become white,the water retention capacity and freeze-thaw stability were improved,and the transparency of the paste lowered.With the increase of drying temperature,the particle size decreased,and the chromaticity value decreased.The water retention capacity and transparency decreased,but the freeze-thaw stability increased.The correlation analysis showed that the soaking time was significantly negatively correlated with the average particle size and b value,and was significantly positively correlated with L value and water retention.The soaking temperature was significantly negatively correlated with a value and water precipitation rate,and was significantly positively correlated with water retention.The drying temperature showed a significantly negative correlation with the average particle size,L value,water retention capacity and water precipitation rate,and was significantly positively correlated with a value.