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B基准值是评价碳纤维复合材料性能的重要参数，对B基准值的高效精确的计算有助于评价复合材料的性能。根据航空工业标准HB7618-2009，开发出基于Matlab的 GUI模块的B基准值的算法，该程序可以实现样本母体检验、异常数据检查、统计分布检验、离散系数修正与检验、B基准值的计算等功能，最后以Word格式导出计算结果。与标准提供范例提供的计算结果进行对比，证明程序运行准确可靠，并且其界面操作简单，显著地提高了B基准值计算效率。“,”B reference value is an important parameter to evaluate carbon fiber reinforced polymer(CRFRP),thus the effi-cient and accurate computation for B reference value of CFRP is helpful to evaluate its properties. According to the aviation in-dustry standard of HB7618-2009,the B reference value algorithm based on Matlab GUI module is developed,which can realize the functions of specimen inspection,abnormal data check,statistical distribution test,discrete coefficient correction and test, B reference value calculation. The calculated result of B reference value is exported in the Word format. In comparison with cal-culation results from the Aviation Industry Standard of HB7618-2009,the algorithm is accurate and reliable. It improved the cal-culation efficient of B reference value significantly.