Due to the increasing number of registered trademarks, it is more and more difficult to design and register a new trademark without a good retrieval method. Thus, we propose a new region based shape description method, the distance-angle pair-wise histogram, as the trademark shape feature vector to retrieve similar trademarks. Experiments have been conducted on about 1000 trademark images. Some moment-based methods have also been implemented. In general, the proposed method performs better than other moment-based methods.