A new method of imagesegmentation is developed. The method is evolved by region growing and artificialintelligence combination. The performance of the method is better than region growing, asits calculation speed is faster and program more simple, moreover it can give moreinformation, such as size, gray level, edge and number of object. An experiment is made onlaser image, cell image and warship image at last. Experimental results have shown thatour method is effective to the different object images.