The preparation methods of the powder phospholipids with high content acetone insoluble and phosphatidylcholine(PC)were obtained using Condensed Soybean Phospholipids(CSP) as raw materials, respectively. The main contents in this thesis are:The powder phospholipids with high content Acetone Insoluble(AI%) was obtained using anhydrous Acetone as solvents, and ultrasonic assistant extraction technique. The ultrasonic power, run time, and the extraction parameters were studied. The result showed that extractio...