The cereals are the most important and most determining cultivated plants of the world and our homeland. Their importance manifests itself in the fact that corns in the ear and corn occupy collectively 50%- of the world's tillage areas and 66-68% of the tillage areas of our homeland. The competitiveness of the cultivation to a great extent depends on the modernity of the production, which is especially valid for our homeland. So I intended to analyse the economic situation of one of the most important cereals, the corn through the activity of a family economy working well. I examine the modern corn growing technology in my work. I present the operations belonging to the technology applied by the economy and I outline the operation norms. I calculate the expenses arising in the interest of corn growing, I define the material costs incurred, the personal expenses, the amortisation and other expenses. I calculate the income from the sales of corn growing with and without support and I also calculate the main capital efficiency indicators.