The method introduces genetic algorithm into procedure for loading and deploying vehicle. Using genetic algorithm to global search for individual, the method realizes loading scheme of using 3D space of cabinet in maximization. Solving strategy is as following: first, use ratio f of 3D space of cabinet is as objective function; the expression of use ratio f is described in patent; Bvij denotes cubage of Jth goods in Ith vehicle, and CVi denotes cubage of Ith vehicle.