The invention discloses a method and system for vehicle operating monitoring, surveillance, data processing and overload monitoring. According to the monitoring method, a measurement-calculation object is arbitrary one or more of vehicle operating parameters of a vehicle, and whether the power transmission condition of the vehicle is abnormal is judged according to the join calculation value and reference data of the measurement-calculation object; the join calculation value is obtained through calculation with vehicle motion balance as a theory. Through implementation of the method and system, abnormity of vehicle power transmission caused by rotation work type power of the vehicle or operation faults of transmission components can be monitored.