Aiming at the physical and chemical properties of soda salinealkali soil in Northeast China, depth, speed and shovel type of subsoiling were selected as test factors by using field mechanical dynamic parameter telemeter, and resistance of subsoiling was taken as test index. Data analysis was carried out by using Design Expert software. The results show that the order of the significance of the effects of various factors on the working resistance is subsoiling depth>working speed>subsoiling shovel type. When the depth of subsoiling is 35 cm, the working speed is 0.83 m/s, and the subsoiling shovel type is chisel subsoiling shovel, the working resistance is the smallest.