In this study, we have a analysis of crop production machinery with controllable cross section. The exhaust gas flow rate can increase the speed of the turbine. The way to change the exhaust gas flow rate is to control the amount of air inlet by changing the position of the blade swing angle. In this way the direction of the intake air changes as the blade swing angle changes. Another method to achieve this is to increase the air velocity into the turbine by changing the size of the turbine nozzle vent. The control of air velocity using this method relies on the vent itself to adjust the size of intake vent, which allows constant flow direction controlled by the blade. The controlled section exhaust food production machinery sensor would solve the problem of low speed and low boosting power of low condition exhaust gas food production turbocharger. It controls the size of the intake end of the turbine nozzle vent and the velocity of exhaust gas to adjust the speed of turbine accordingly, which further increases the boost level.