[en] This paper reports the annual dose levels of 3124 radiation workers in Shanxi province measured by thermoluminescense dosimetry. the minimum annual level is 0.2 mGy and the maximum is 70 mGy, with an average of 1.79 mGy. The annual dose levels for persons engaged in different occupations such as medical radiodiagnostic workers, nuclear medicine, and radiotherapy personnel, industrial radiographers, geological survey workers, teaching and research workers and others are 1.95 mGy, 1.15 mGy, 0.91 mGy, 2.11 mGy, 1.76 mGy, 0.65 mGy, and 1.14 mGy, respectively. Of the 3124 investigated radiation workers 95.9 per cent received an annual dose below three tenths of the annual dose limit of 50 mGy and 89.8% had a dose below one tenth of that limit