文章提出了一种混合编码的遗传算法。该算法有机地将二进制编码和浮点数编码结合起来 ,并针对不同的编码方法设计相应的交叉、变异算子。混合编码方法既有二进制编码全局搜索能力强、简单、易操作的优点 ,又具有浮点数编码局部搜索能力强、精度高、稳定性好、运算速度快的优点。使算法不易陷入早熟收敛且局部搜索能力强 ,收敛速度快。文章对一系列典型函数进行了优化计算 ,试验结果证实了这种混合编码遗传算法的有效性和优越性强 The article proposes a hybrid coding genetic algorithm. The algorithm combines binary coding and floating-point coding organically, and designs corresponding crossover and mutation operators for different coding methods. The hybrid coding method not only has the advantages of global search capability of binary coding, simple, easy operation, but also has the advantages of local search ability of floating-point coding, high precision, good stability, fast operation. So that the algorithm is not easy to fall into premature convergence and local search ability, convergence speed. The article has carried on the optimization computation to a series of typical function, the test result confirmed this mixed coding genetic algorithm the validity and superiority