Abstract: Objective To investigate and analyze the configuration of radiation diagnosis and treatment equipment,protective equipment and the number of staff in the radiation diagnosis and treatment institutions in Shaanxi Province,provide a reference for further optimizing the allocation of resources in Shaanxi Province. Methods A general survey was used to investigate the basic situation of radiological diagnosis and treatment institutions at all levels in Shaanxi Province from January 2021 to January 2022. The survey content included the allocation,protective equipment and staff structure of four types of radiation diagnosis and treatment equipment,which are radiological diagnosis,radiotherapy,Nuclear medicine,interventional radiology,as well as the investigation of the frequency of radiological diagnosis and treatment,and the data were analyzed. Results A total of 1 971 radiological diagnosis and treatment institutions were investigated,with a total of 12 948 radiological workers,of which the highest proportion of radiological workers in tertiary hospitals was 51.72%. In the four types of radiological diagnosis and treatment,the proportion of male radiological workers was greater than that of females. There were a total of 3 984 radiation diagnosis and treatment equipment in 1 971 radiation diagnosis and treatment institutions,including 3 517,82,46 and 339 sets of radiological diagnosis,radiotherapy,nuclear medicine and interventional radiology respectively. The highest proportion of radiation diagnostic equipment in secondary hospitals was the highest（34.63%）,while the equipment for radiotherapy,nuclear medicine and interventional radiology were mainly distributed in tertiary hospitals,with 77（93.90%）,46（100.0%） and 261（75.87%） respectively. Among 1 971 radiation diagnosis and treatment institutions,a total of 21 471 sets/pieces of radiation diagnosis and treatment protective appliances,including 15 944（74.26%） sets/pieces of radiological diagnosis protective appliances/equipment,444（2.07%） sets/pieces of radiation therapy protective appliances/equipment,512（2.38%） sets/pieces of nuclear medicine protective appliances/equipment, and 4 571（21.29%） sets/pieces of interventional radiology protective appliances/equipment. The frequency survey showed that there were 14 503 457 people undergoing conventional X-ray diagnosis among the number of X-ray diagnosis,with a relatively high proportion being in secondary hospitals,there were 8 206 699 people undergoing CT diagnosis with a relatively high proportion being in tertiary hospitals. The number of interventional treatment,radiotherapy,nuclear medicine diagnosis and treatment were all concentrated in tertiary hospitals. Conclusion The number of radiotherapy,nuclear medicine and interventional radiology equipment and the number of radiological staff in the tertiary hospitals are higher than those of the secondary hospitals and below,the number of radiological diagnostic equipment in the secondary hospitals is slightly higher than that in the tertiary hospitals,and the protective equipment of the hospitals at all levels are equipped as required.

Key words: Radiological diagnosis and treatment institutions, Radiation diagnosis and treatment equipment, Shaanxi Province