Abstract: Objective To analyze the monitoring results of key occupational diseases in Cangzhou City from 2018 to 2022,so as to provide basis and support for formulating policies,improving regulations and standards,establishing and improving supervision mechanism,and clarifying the focus of occupational health work in Cangzhou City. Methods The occupational health examination results reported by various occupational health examination institutions in Cangzhou City from 2018 to 2022 were collected,and a database was established with Excel. Data were sorted and analyzed with SPSS 21.0. Results From 2018 to 2022,the number of institutions,monitored diseases,monitored enterprises and actual occupational health examination workers in Cangzhou City all increased year by year. From 2018 to 2022,there were statistical differences in the distribution of monitored enterprise size and economic type（both P<0.05）,and the number of micro-enterprises and other economic types of enterprises increased most rapidly. The hazard factor with the highest occupational health examination rate was noise,involving 4 646 enterprises and 130 624 injured workers. The detection rate of key occupational diseases in Cangzhou City was 0.003%,and there was a statistical difference in the detection rate of key occupational diseases among workers with different risk factors（P<0.01）. There was also a statistically significant difference in the detection rate between different years（P<0.01）. The difference in the trend test of annual detection rate was statistically significant（χ²_trend=12.529,P<0.01）. The detection rate of suspected occupational diseases was 0.01%, and there were a statistical difference in the suspected occupational disease detection rate between different years（P<0.01）,and the trend test of the annual detection rate also showed a statistically significant difference（χ²_trend=9.563,P<0.01）. Conclusion Cangzhou City should focus on strengthening the prevention and control of occupational disease hazards such as dust and noise in future occupational disease prevention and control work. At the same time,attention should be paid to the detection of suspected occupational diseases,further strengthen the supervision of administrative departments,improve the occupational health examination rate,and protect the health of workers.

Key words: Key occupational disease, Suspected occupational disease, Occupational hazard factors