Abstract:The ant colony algorithm has been newly-produced heuristic bionic algorithm in optimization region in the recent years, which uses distributed parallel computation and positive feedback mechanism, overcoming the shortcomings of traditional optimistic algorithm, can better solve the optimum seeking issue in practical operation, which is paid more attention to by the people. The paper introduced the method and principle using the ant colony algorithm for inversion of interval velocity. Starting from using ant colony algorithm to solve optimistic problem of objective function, and utilizing model to check the inversed results of the method, the paper showed that the interval velocity computed by ant colony inversion algorithm is basically coincident to theoretical model of velocity.