《中学生数学》2011年9月下刊登了魏祥勤、魏秀英二位老师的一文《探究一类边长都是特殊整数的倍角三角形问题》,文章通过角平分线性质及勾股定理的应用,得到了几个结论,受二位老师的启发,本人以角平分线性及相似三角形性加以新的探讨,并补充第三种分类情形. “High School Mathematics” published in September 2011 Wei Xiangqin, Wei Xiuying two teachers article “to explore a class of side-length are all special integer multiplier triangle problem”, the article by the nature of the bisector of angle and the Pythagorean theorem, get A few conclusions, inspired by the two teachers, I am new to the angle of bisect linearity and similar triangles to explore, and to add a third case of classification.