An automatic agricultural machinery with various functions. Made up of frame, pole, plough share, soil separating board,leading bogie and strengthening tie bar. Can be installed on the left beam between the front and rear wheel. With adjustable ridge distance. Automatic plough share and controllable depth; appliable for deep loosening of land and breaking up clods, matchable with seeding machine; with small turning radius, especially suitable for slope. Save fuel and labor; with good ecnomic returns, suitable for promotion.