关键词: 遗传算法, 交叉算子, 智能交叉算子, 十进制编码

Abstract: This article analyzes the functions and drawbacks of crossover of traditional Genetic Algorithm（GA），and points out that it is the very crossover，which is appointed tow paradoxical functions，complicates the mechanism of traditional GA.It proposes a new intelligent crossover，which has a relatively simple function，to build a new and simple mechanism of GA.It points out that evolution is performed by both environment and individual.Based on this idea，it programs a MATLAB toolbox of the new GA based on the intelligent crossover and has the toolbox tested numerically.Numerical test results indicate that the new GA has a very precise solution and faster convergence speed，and overcomes premature convergence.

Key words: Genetic Algorithm, crossover, intelligent crossover, decimal coding