The invention discloses an automatic loading and unloading process for a port. The automatic loading and unloading process for the port comprises the steps that containers are suspended off a ship bya lifting appliance and placed onto a transfer trolley; the container numbers are collected by a first handheld terminal at the loading position, a stacking location distribution module is used for distributing a stacking location for the containers, an identification code generating module generates an identification code which comprises stacking location address information and the container number, and a computer management system sends the identification code to the first handheld terminal; the identification code is read through a first identification code reading module; and a second handheld terminal is fixed to the stacking location; and after the transfer trolley arrives at the stacking location, a second identification code reading module reads the identification code from a display module, and if the stacking location address information contained by the identification code is coincident with the address information of a stacking location corresponding to the serial number of the second handheld terminal, a piece of state information is associated to the identification code in a database. The automatic loading and unloading process for the port improves the container loading and unloading efficiency and improves the transfer efficiency of the whole port.