It is known that the classical plough not fully reverse the soil layer. As a result, the top soil is placed at various depths below the surface of the field. Proposed a plough for fully reverse of the soil layer with extended rear plow body. As a result, an additional resistive force was created which displaces linkage point on the plow. Is obtained analytical dependence for the determination of the displacement of the linkage point of the plow for fully reverse of soil layer. The same relationship is illustrated for different numbers (2 to 10) plow bodies with working width of 35 cm.