Abstract: On the occasion of the 125th anniversary of the discovery of Roentgen rays, contemplation and chanting this unprecedented great epoch-making achievement in the history of human science and technology, It has profoundly influenced and changed the world, to the scientific and technological progress and social civilization has brought incomparable brilliant results. Looking back on the past, combining with the continuous new developments in related fields at home and abroad, this paper reviews the development trend in four aspects, to express our reverence and remembrance, pray for enlightenment and benefit. Foresee the future by reivewing the past, based on ionizing radiation technology is a double-edged sword, therefore, it is a great honor to escort the development of nuclear science and technology and its wide application.On the 125th anniversary of the discovery of the Roentgen ray, this unprecedented epoch-making achievement in the history of human science and technology has profoundly influenced and changed the world, and brought incomparable brilliant fruits to the progress of science and technology and social civilization. Looking back at the past, closely combining with the outstanding achievements in related fields at home and abroad, we would like to follow up and comment on relevant developments and trends from four aspects, to express our respect and memory, and hope to obtain valuable enlightenment and benefit. Having learned from the past that ionizing radiation technology is a double-edged sword, I am deeply honored to be able to unswervingly safeguard the development of nuclear science and technology and its extensive application.

Key words: X-rays, Roentgen, Nobel Prize, Nuclear science and technology, Medical imaging technology, Radiodiagnosis and radiotherapy: Radiological protection