Abstract: An investigation was conducted on themortality of the workers in a factory to research the health effections of the occupational factor on the retired radiation workers. A cross-section study wasadopted to study the population consisting of all retired radiation workers on the register from the year of 2000. The morbidity of the chronic diseases were calculated. The chronic diseases mainly show circulatory system and tumor, the morbidity of the circulatory system and tumor were 1 146.8/10⁵ and 114.4/10⁵, respectively. The results shows the occupational factor has no influence on the retired radiation workers.

Key words: Radiation, Chronic diseases, Morbidity, Retired workers