The radiotherapy apparatus control apparatus instructs execution of instruction information based on a predetermined treatment plan by the radiotherapy apparatus, and relates to irradiation provided in the radiotherapy apparatus based on an irradiation condition included in the instruction information Based on the detection result of the irradiation target detection unit that controls the operation of the device and detects the movement of the irradiation target, determines whether irradiation is possible, and controls execution and interruption of therapeutic radiation based on the determination result Then, the irradiation interruption history determined by the irradiation enable / disable determination unit is recorded, and the operation of the device based on the instruction information is executed to the end regardless of whether irradiation is interrupted during the execution of the instruction information.放射線治療装置制御装置は、放射線治療装置による予め定められた治療計画に基づく指示情報の実行を指示し、前記指示情報に含まれる照射条件に基づいて、前記放射線治療装置に設けられた照射に係る機器の動作を制御し、照射対象の動きを検出する照射対象検出部の検出結果に基づいて、照射の可否を判定し、前記判定の結果に基づいて治療用放射線の照射の実行と中断を制御し、前記照射可否判定部の判定による照射の中断履歴を記録し、前記指示情報の実行途中における照射の中断の有無に関わらず、前記指示情報に基づく前記機器の動作を最後まで実行する。