In internal combustion engines with spark ignition and the direct fuel injection, the indicators are offered to evaluate the organization of the working process in the form of a criterion for the stratification of the air-fuel charge and the degree of stratification of the air-fuel mixture. Using the experimental data of a two-stroke engine with spark ignition and the direct injection of fuel with load characteristics, the values of the excess air coefficient in a cylinder and in the volume of the air-fuel mixture are determined. A comparative assessment of the suggested indicators in the organization of the workflow with the stratification of depleted fuel-air charge is presented. It has been defined that a more promising way of organizing the workflow to improve the fuel and economic performance of a spark ignition engine is organizing the fuel injection with the stratification of a depleted air-fuel charge.