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Since computed tomography (CT) was invented and used clinically or in research, it is currently widely used in the diagnosis, staging, assessment of disease response to treatment, with clearer image quality and shorter scanning time. There are many diseases which are not easily found at an early stage with noticeable symptoms, unknowingly spread the infection to others and are easily missed. When clinical symptoms appear, the disease may have been on late stage, its therapeutic efficacy and prognosis will be significantly worse. CT can be used for screening of asymptomatic population and individual health assessment (IHA), improving the detection rate of diseases, achieving early diagnosis and early treatment of diseases, thus improving the survival rate of patients. Radiation production is inevitable during CT scans, despite protective measures are improving continuously. Among the radiation doses of which the examinees received, the proportion of CT examination as a source of radiation is increasing. How to use CT rationally for IHA in asymptomatic population and to reduce the radiation dose of CT has become a research hotspot. In 2014, WHO held an international summit on “the reasonable application of CT in the IHA of asymptomatic population” in Munich, Germany, and reached a consensus. At present, the European and American countries have more studies on the usage of CT for IHA in an asymptomatic population with lung cancer, colorectal cancer, and coronary heart disease and have established a relevant strategy. This paper summarizes and analyses the utilization of CT and associated radiation‐dose reduction in asymptomatic population in China. feasIbIlIty and necessIty of the use of coMputed toMography for IndIvIdual health assessMent In asyMptoMatIc populatIon In chIna CT is currently developing very rapidly within the last decade. Up‐to‐dated technologies are emerging. The sophisticated CT which has been launched since 2008 is called as “after 64 row CT”.[1] High‐tech CT with its associated hardware and software are progressing. The problem of CT scanning dose has been one of the main factors restricting the development of CT and attracted wide attention. The effective methods to reduce CT radiation dose to patients includes the use of a prospective electrocardiogram (ECG) triggering of the scan, dual source CT (DSCT) and higher helical pitch, and “projection space denoising” technique.[2] Radiation dose has been significantly reduced. Currently, there are more than 10,000 CT scanners in hospitals in China. Rural community hospitals have one or more CT scanners. The capacity of having CT scanners is 8.6 per million populations.[3] The price of CT examination is relatively cheap in China, such as 15–32 € per plain CT head examination. The amount of CT examination is rising progressively. According to the United Nations Scientific Committee on the Effects of Rational Use of Computed Tomography for Individual Health Assessment in Asymptomatic Population: Chinese Experience