The invention provides a self-adaptive FCM license plate positioning method and system, and the method comprises the steps: carrying out the rough positioning based on a vehicle image through employing license plate structure features, and obtaining a plurality of candidate regions; performing color clustering on the k-th candidate region based on an FCM algorithm to obtain C clustering center values; judging whether the number C of the clustering center values is less than a first set value or not; if the number C of the clustering center values is greater than or equal to a first set value,e...
