Abstract: The basic modes of cigarette case automatic dispatching system were introduced, and their efficiencies were compared.Version-sequence dispatching, the main factor influencing dispatching efficiency, was discussed in detail.The results showed that:1)when 2 passages were used at the same time, the efficiency of the equalized dispatching mode was lower;while 5 unstacking robots took part in dispatching, the efficiency was the highest;2) when the requested throughput of the system was up to twenty thousand cases per 8 hours, 5 passages, 5 unstacking robots and four groups of loaders should be assigned.In practical application, the principle of the highest dispatching efficiency should be followed, so as to ensure loading every truck in the shortest time, and enable the waiting time of robots' unstacking and vehicle changing as short as possible.