Soil-layer displacement plough

The invention relates to a soil layer displacing plow. The soil layer displacing method comprises the following steps: firstly, plowing a plowing layer trench with the plowing layer depth; turning and covering a plowed plowing layer furrow at one side of the plowing layer trench to prepare for the subsequent soil layer displacing operation; secondly, plowing downwards in the plowed plowing layer trench, and plowing, turning and covering the soil in a subsoil layer of the trench on the plowing layer furrow to form a deep trench; and finally, turning and covering the soil of a plowing layer at the other side adjacent to the plowing layer in the deep trench to form a new plowing layer trench. The soil layer displacing method and the soil layer displacing plow have the advantages that: a 'fatigue soil layer' of a surface layer and a 'good soil layer' of a subsurface layer are displaced, and the aims of relieving the 'fatigue soil layer', reducing the harm of residual pesticide and improving the yield of crops are