System and method for detecting driving behavior include a method including sampling, at a preset time interval, acceleration data of a vehicle generated by an accelerometer along a longitudinal direction of the vehicle. The accelerometer is mounted on the vehicle. The method also includes determining an average acceleration along the longitudinal direction by averaging the sampled acceleration data over a first preset time period. The average acceleration is represented by a magnitude and a direction. The method further includes when the magnitude of the average acceleration is greater than a first preset magnitude, determining an aggressive driving behavior has occurred.