Abstract: The three-dimensional shape information of the target is of great significance for SAR image interpretation and target recognition. To address the challenge of hierarchical extraction of overlapping regions due to the complex three-dimensional structure of ship targets, a method for extracting the three-dimensional shape information of ship targets in single-angle SAR images based on a layered model is proposed. This method first constructs a layered model based on the three-dimensional structural features of the ship target, decomposing it into combinations of one-layer, two-layer, and three-layer structures. Then, based on the differences in shape, size, and height of the various structures, and combined with the prior information of the layered model, the overlapping regions of each layer are extracted. Finally, the height information of each layer is calculated using spatial mapping relationships, and by combining the length and width data of the overlapping regions in each layer, the three-dimensional shape information of the ship target is extracted, while also analyzing the effect of the azimuth angle. Experimental results show that the proposed method demonstrates good capability in extracting three-dimensional shape information from high-resolution SAR images of stationary ship targets. Compared to other methods, this approach offers advantages such as simple principles and ease of implementation, providing a novel solution for extracting three-dimensional shape information from SAR ship target images.