The system of Vehicle License Plate automatic recognition is one of the most important part of road monitoring.There are numerous problems and difficulties when it is used in all kinds of conditions all day long.Among them

a precise location is a key step in the real-time and automatic recognition techniques for Vehicle License Plate.In this paper we introduce a Vehicle License Plate location algorithm based on the edge detection and another algorithm is put forward by means of the characteristies in colors on license plate.It has been organized with two parts : one is about an color orientation algorithm based on the similarity in Color Space.;the other is about an edge detection algorithm.This algorithm thoroughly utilizes the color features and large amounts of experimental results demonstrate that the approach has the properties of simplicity and applicability.