This chapter presents the most distinguished studies accomplished by investigators from different countries. It analyzes the soil tillage process using finite element method (FEM). In the past, many investigators used FEM to analyze the soil-tool interaction during a tillage operation. Globally, soil tillage is a continuous soil cutting process in which soil and tool interact in the following continuous manner. At first, a certain part of the soil is activated from static state by the moving tool. Finally the soil departs from the tool and the fresh part of the soil is activated. Soil tillage is a common operation in a crop production system. Liu and Hou conducted three-dimensional FEM analysis of soil cutting using the friction element as interface elements. The most common elements used to simulate the soil cutting process in the past included the triangular and planar four-node isoparametric elements in two-dimensional cases, and eight-node isoparametric element in three-dimensional cases.