Due to the change of illumination, distance and complicated background, etc. the desired effect can be hardly achieved by traditional license plate location based on single feature. In order to accomplish license plate location under complicated background, license plate localization algorithm which combines characters texture features with RGB color features has been proposed. The license plate can be located quickly and accurately by using the complementary features of bottom color and character color and then looking for color pairs on the license plate as well as combine the textural features which are used for feedback checking. The results show that the accuracy rate of license plate location can reach 99.4% by experiment on 12 581 color images under complicated background which has proved the validity of this algorithm.