在领头阶和αs 修正阶 ,用QCD因子化方法 ,并对它的软胶子效应用光锥QCD求和规则分析D+ → K0 K+ 衰变过程 ,我们分析发现朴素因子化方法的结果远离实验结果 ,QCD因子化方法结果靠近实验结果 ,但是 ,在QCD因子化方法中 ,若考虑软胶子效应 ,其结果与实验结果相一致 .另外 ,计算发现 ,软胶子效应在该衰变道中有相当大的贡献 ,因此不能被忽略 In the leading order and the αs correction order, we analyzed the decay process of D + → K0 K + by using the QCD factorization method and the cone of light QCD of its soft gluon effect. We found that the result of the naive factorization method is far away from the experimental results, The QCD factorization method results are close to the experimental results, however, the results of the QCD factorization method are consistent with the experimental results in the case of the QCD factorization method. In addition, the calculation results show that the soft gum effect is quite large in the decay channel Contributions therefore can not be ignored