地应力测量技术的研究已有几十年的历史， 但是对于地下深部地应力非钻孔式测量探测技术的发展， 则一直进展很慢． 本文依据天然电磁波场源， 利用光弹实验模型原理， 研制了 Ｄ Ｙ Ｌ 型地应力探测仪， 并在淮南地区地应力状态普查过程中， 取得了明显的应用效果 The study of geostress measurement technology has been for decades. However, the development of underground geo-stress non-borehole measurement and detection technology has been slow to progress. In this paper, based on the natural electromagnetic wave field source, using the principle of photoelastic experiment model, developed D Y L-type ground stress detector, and in the process of census of state stress in Huainan area, and achieved significant results