“…According to the group behavior of ants "in search of food", the famous Italian scholars Dorrigo M in 1991, putted forward the basic model of ant colony algorithm [3]. The ants do not know the location of food, while in the process of ants searching for food will be on the path to release a secretion (pheromones), one of the ants find food, other ants will according to the pheromone along this path to find the same food, some ants will not like other ants along the same path but will find other paths, the pheromone concentration size according to distance, Pheromones at the same time will disappear with time and volatilization, when one path from food recently (pheromone biggest), the more the ants will choose this path, finally, after a period of time will be most ants moving form an optimal path [4].…”