Abstract: Based on indoor experiments, the movement of soil water in drip irrigation was measured in saline-alkali soil of Changji region in Xinjiang province for different drip irrigation calcium-using time. Soil water movement and salt transport in saline-alkali soil for different drip irrigation calcium-using time (in the beginning of the irrigation cycle (Ca-W), at the end (W-Ca), in the middle (W-Ca-W), and in the beginning and end of the irrigation cycle (Ca-W-Ca)) were studied.The results show that distributions of water in soil is influenced for different calcium-using modes. The salt transport of saline-alkali soil is significantly influenced for different calcium modes. With the increase of the horizontal and vertical advance distance of soil wetted front increasing, soil salinity and sodium content and sodium absorption ratio increase for different calcium treatments in drip irrigation. Coefficients of controlled desalinization zone and the depth of the sodium desalinization zone coefficients of Ca-W-Ca mode are higher than that of other modes, but the sodium absorption ratio of Ca-W-Ca mode is less than that of other modes, and the desalinization effect of Ca-W-Ca is also superior to that of other modes. It can be concluded that the crop root grow better in the Ca-W-Ca mode and improvement effect of saline-alkali soil of this mode superior to that of other modes.