Abstract: The status of X-CT equipment and its medical exposure application frequency in medical institutions were investigated, with the typical sampling method employed, in Jiangxi Province in 2016. The results showed that the larger types of examination were respectively: 1) chest ( 32.76%), brain (20.57% ) and abdomen (17.39%) for male; chest (29.81%), skull (23.67%) and abdomen (19.62% ) for female; 2) brain (25.32%), chest (21.14%) and abdomen (20.68%) for the age group of 0-15; 3) chest (26.11%), abdomen (21.29%) and brain (19.95%) for the age group of 16-40; 4) chest (34.49%), brain (21.92%) and abdomen (16.96%) for the age group of over 40.

Key words: X-CT, Medical exposure, Application frequency, Jiangxi