A novel genetic algorithm based on species selection was proposed with combination of trust reign and evolutionary stable strategy. The population was divided into two parts based on the distances between individuals and the current optimal individual. One was the optimal population of current generation, and the other aggregated hypo-opt individuals. A new cross operator based on optimal vector was presented and some numerical tests were made. The results show that this new approach can enhance local searching by bounding constrained optimal population and could rise the population diversitie...