Abstract: A self-service transaction automatic optimization service control system is provided, which includes a time-slicing service mode generating module, a service interrupting signal generating module and a self-service terminal control module. Wherein, the time-slicing service mode generating module is configured to detect the current user queue of the self-service terminal and identify whether the user queue is in a long queue state, convert the self-service terminal from a general service mode to a time-slicing service mode if the user queue is in a long queue state, otherwise maintain the self-service terminal maintain in the general service mode, wherein the time-slicing service mode provides business service of specific time or specific number of times to the user currently in operation of the self-service terminal.