In this paper, grey sequence forecast model PGM(1, 1) was built by using Excel which consisted of matrix operation and function of programming, so that the forecast precision was improved.

• 本文通过Excel提供的矩阵运算和规划求解功能实现了用Excel软件建立灰色数列预测模型PGM(1；1)；并提高了预测精度.