To provide a signal indication announcement system for a departure traffic signal capable of shortening a period from a time the signal indication of the departure traffic signal is changed to a signal except a stop signal to the departure time of a train.

When the train 3b waits at a side line 1b, a train 3a passes a main line 1a, and the trail of the train 3b enters a zone DT, the on-rail information of the train 3a in the zone DT is inputted into an interlock device 9. The announcement device 8a announces the change of the signal indication of the departure traffic signal 6b when a control device 10 reads out an announcement time from an announcement time memory device 8c and an announcement start time has passed after the trail of the train 3b enters the zone BT. For example, when a departure reaction marker is used as the announcement device 8a, the departure reaction marker announces the change of the signal indication of the departure traffic signal 6b to the signal except the stop signal by repeating flashes of the departure reaction marker during the announcement time.