The present invention relates to a real-time radiation dose and distribution measuring device using an X-ray guided ultrasound image system, and a method therefor and, more specifically, to a real-time radiation dose measuring device comprising: an X-ray linear accelerating device (100) which irradiates X-rays to a treatment site； and an ultrasonic transducer module (200) which noninvasively obtains X-ray guided ultrasound signals generated by a thermal expansion phenomenon caused by absorption of the X-rays irradiated from the X-ray linear accelerating device (100) by scanning the treatment site. The present invention measures a radiation dose of the treatment site and a surrounding treatment site by analyzing the X-ray guided ultrasound signals obtained through the ultrasonic transducer module (200). The provided present invention relates to the real-time radiation dose and distribution measuring device using the X-ray guided ultrasound image system, and the method therefor. The present invention is provided to combine the X-ray linear accelerating device for treatment, an ultrasonic single element transducer, and an array transducer, thereby providing information for the radiation dose and the radiation distribution of the treatment site through an X-ray guided ultrasound image of the treatment part in radiation treatment. The present invention is provided to offer the information for the radiation dose and the radiation distribution for the treatment site in the radiation treatment, thereby reducing errors of the treatment depending on movement of an organ； maximizing delivery of the radiation dose to lesion tissue； and maximizing a treatment effect by minimizing exposure of surrounding normal tissue.본 발명은 X선 유도 초음파 영상 시스템을 이용한 실시간 방사선 선량 및 분포 측정 장치와 그에 관한 방법에 관한 것으로서, 보다 구체적으로는 실시간 방사선 선량 측정 장치로서, 치료부위에 X선을 조사하는 X선 선형 가속기(100), 및 상기 치료부위를 스캐닝하여, 상기 X선 선형 가속기(100)로부터 조사된 X선 흡수에 의한 열팽창 현상에 의해 생성되는 X선 유도 초음파 신호를 비침습적으로 획득하는 초음파 트랜스듀서 모듈(200)을 포함하되, 상기 초음파 트랜스듀서 모듈
