Work delivery method in roaming environment

The invention discloses a work delivery method in a roaming environment. The method comprises the following steps: (A) a target server obtains a work list according to work information, and obtains a target router; (B) the target server side obtains a work item to be executed from the work list; (C) the target server transmits the work instruction to the target router; (D) the target router judges whether the to-be-operated electronic tag indicated in the work instruction is still in an online state or not; (E) when it is judged that the server is not in the online state, an offline notification is transmitted to the target server; (F) the target server side judges whether the online notification of any one of the at least one router is received or not; and (G) when it is judged that the online notification is not received, the target server updates the stored online table and transmits the work transfer information to the enterprise server. Therefore, the work receiving and executing conditions of the electr