A device for inserting a coil comprises a delivery wire driving section (10), a slave catheter driving section (20), and a controlling circuit (30). A platinum coil (100) for coil embolization is mounted to the front end of a delivery wire (110). The delivery wire driving section (10) is installed near the inlet of a Y-connector (131) so as to be able to advance and retract the delivery wire (110). The slave catheter driving device (20) is installed near the inlet of a Y-connector (132) so as to be able to advance and retract a slave catheter (124). The controlling circuit (30) controls the delivery wire drive section (10) so as to insert the delivery wire (110) with a predetermined insertion force. When the delivery wire (110) cannot be inserted, the controlling circuit (30) controls the slave catheter driving device (20) to advance the slave catheter (124) after retracting the slave catheter and then controls the delivery wire driving section (10) to insert the delivery wire (110).
