本文通过１９６５—１９９３年发生在云南及邻区８组１０次６．８≤Ｍ≤７．７大震前空间容量维、关联维、信息熵等多种参数系统的计算研究，发现１０次大震前降维减熵异常十分显著；并分别给出了容量维Ｄｃ、关联维Ｄｆ、信息熵Ｓ的正常变化值、异常判别值和短临预报阀值等；在Ｄｃ，Ｄｆ，Ｓ用于地震短临预报实用化方面取得了有意义的实验结果。 In this paper, the calculation of space capacity dimension, correlation dimension, information entropy and other parameters before 10 large 6.8≤M≤7.7 earthquakes happened in 8 groups of Yunnan and its adjacent areas from 1965 to 1993, The dimensionality reduction entropy anomaly before the earthquake is very significant. And the normal variation value, abnormality judgment value, short-term prediction threshold and so on of the capacity dimension Dc, the correlation dimension Df and the information entropy S are respectively given. For Dc, Df, S, Earthquake short-term forecast practical application has made meaningful experimental results.