Ant colony algorithm is a novel simulated evolutionary algorithm which is proposed first by Italian scholars M.Dorigo, A.Colormi, and V. Maniezzo. Preliminary study has shown that it has many promising futures. It provides a possible way for complicated combinatorial optimization problems,so it interests many scholars. Unfortunately, however it has some shortcomings such as needing much time and easier occuring of stagnation behaviour. In view of the deficiency of research of ant colony algorithm at hom...