Entity relation extraction is one of the important procedures of know ledge graph technology. Research on entity relation extraction in English is comparatively developed. By contrast,the development of Chinese entity relation extraction is not ideal,and it is mainly because the lack of corpus. In order to solve this problem,COAE2016 proposes a Chinese entity relation extraction task in task 3. In this paper,w e use three algorithms to solve the problem : a pattern based algorithm,a SVM based algorithm and ...