The invention provides a translation support system control method. The translation support system includes: a transfer unit transferring translation word approval request information to an approver terminal of an approver, the translation word approval request information including an original word or phrase received from a request-source terminal requesting to the approver an approval of a translation word of a particular original word or phrase; an approval request information storage unit storing translation word approval result information including at least approve-or-reject information corresponding to the translation word approval request information received from the approver terminal and an approved translation word corresponding to the original word or phrase; a notification storage unit storing notification message corresponding to the approve-or-reject information; a notification determination unit determining, in accordance with the approve-or-reject information, the necessity of notification to the terminals other than the request-source terminal and determine which piece of the notification message should be notified to each of the terminals; and a notification transmission unit transmitting notification information to terminals for which notification or respective notifications have been determined to be necessary.