Image segmentation is one of the difficult problems in the field of computer vision.Under the conditions of automatic segmentation being difficult,it may be practical to use interactive image segmentation method.Based on the deep analysis of classic graph cut method,the segmentation method for ship visible image based on combining coarse and precise interaction and iterative graph cut is proposed,which mainly includes four steps:coarse interaction by rectangle bounding box,iterative graph cut based on Gaussian mixture model,precise interaction by polygon border editing,and graph cut refinement in the strip zone.The simulation results show that the proposed method has arrived at the expectation,i.e.,small interaction and good segmentation effects,and it is able to meet the needs of feature extraction and target recognition.