利用VisualC++ 设计了基于Windows平台的多重分形谱计算程序，重点介绍了此软件的功能、原理及应用，并利用此软件计算了不同碱度烧结矿的多重分形谱。计算结果定量地表征了烧结矿孔隙的分布形态，随着碱度提高，多重分形谱的宽度[Δα]由0.53 增加到0.58，孔隙结构变的更加复杂；多重分形谱最大、最小概率子集维数的差别[Δf]由 0.8 变为－0.23，烧结矿孔隙由以宏观孔隙为主变为以微孔隙为主，孔隙率提高，结果与透射电镜图像一致。多重分形软件准确而直观地反映了烧结矿孔隙的结构形态，实现了多重分形谱计算的自动化。

The multifractal spectrum calculation program was designed using VisualC++ based on Windows platform. The function， principle and applications of this software were introduced. The multifractal spectra of sinter ores with different alkalinities were calculated using this software. The results characterized the distribution pattern of sinter pores quantitatively. With the increase of alkalinity， the width[(Δα)]of multifractal spectrum increased from 0.53 to 0.58. The porous structure became more complex. The difference[(Δf)]of dimension between maximum and minimum probability subset of multifractal spectrum changed from 0.8 to－0.23. The main pores in sinter ore changed from macropores to micropores. The porosity was improved. These results were consistent with the transmission electron microscopy images. The multifractal software could accurately and intuitively reflect the surface morphology of pores in sinter ores， realizing the automation of multifractal spectrum calculation.