This article compares the effectiveness and accuracy of two kinds of models for forecasting surface subsidence in mining are -as and using MATLAB programming for calculation , which are based on GM (1, 1) model and polynomial fitting numerical calcula-tion methods.And the methods have positi -ve significance for improving the precision and accuracy of information forecast .%采用GM(1,1)模型和多项式拟合的数值处理方法并使用MATLAB编程计算,对比了两种模型在预测矿区地表沉降中的有效性和精确性,对于提高信息预测的精度和准确度有积极的意义。
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