The article gives suggestion on the improvement of deep tillage of soil with the help of combined chisel equipment. Taking into account the existing technologies of tillage and technical equipment for the realization of the above-mentioned operations we concluded that it is reasonable to give up traditional moldboard tillage. Taking into consideration the experience in the agrarian sphere of the developed countries and researchers findings the deep tillage by the combined chisel equipment can be the starting point of energy saving and soil protecting technologies. Considering the specificity of soils and variety of requirements for technical support of chisel tillage, the issue of improvement of chisel tilling equipment needs effective scientific solving, including the process of adaptation of the existing designs to certain conditions. On the basis of the research findings we proved a positive influence of the additional working parts and elements on the quality of soil pulverization and energy costs. The improved design of a chisel sweep with additional deformers was suggested. In the function of the additional working parts of the combined chisel it is recommended to use a coupled crosskill roller with straight teeth which functions as supportive and provides breaking big lumps and equal distribution of useful residues at the set depth. The presented results research of the improved combined chisel prove its efficiency and enable its application in difficult soil and climatic conditions of Ukraine. It was specified that cultivation of hard and medium clay loam by a combined chisel increases the quality indicator of soil pulverization at the level of 70-75% with the hardness of 60-85 kg/cm2 . The recommendations for practical application of the suggested tilling appliance were developed.