The utility model discloses an automobile -used fuel consumption statistical system, a serial communication port, including being arranged in setting up in the message routing of tanker aircraft module and being arranged in setting up receiving module, the information processing module at the vehicle, the message routing module for it transmits for receiving module to change the volume read -out pulse signal in the tanker aircraft into analog signal, receiving module for it transmits and stores for information processing module to change analog signal into data signal, information processing module for the mileage information of acquireing volume read -out information and vehicle is as the oil consumption design conditions. The utility model discloses a system integrates the tanker aircraft and the vehicle of filling station, and the volume read -out message routing that will be correlated with is for refueling the vehicle, and in addition vehicle itself can write down the function of operation mileage number to ally oneself with two kinds of isolated information and handle, integrate statistical analysis on existing volume read -out and operation mileage base plinth, concrete implementation simply, the parts change is little.