Aimming at the complexity of time constraint in vspfl，a vsp model with full loads is set up which takes into consideration the load time and load sequence producing the dynamic time windows．A heuristic algorithm based on the dynamic formation is developed．In this paper，the model and algorithm improve the process of common time windows of vsp with full load，produce a more realistic solution and the resulting efficiency is that  satisfactory solution of minimizing the total cost can be quickly drawn by parameters adjusting and iterations．