To comprehensively evaluate the technical support ability of occupational disease surveillance and evaluation of the county-level Center for Disease Control and Prevention (CDC) in Sichuan Province, in order to optimize the allocation of resources, improve the support ability of occupational disease prevention and control, and provide reference for balanced development.

The technical support ability of occupational disease surveillance and evaluation of county-level CDCs in Sichuan Province was comprehensively evaluated by entropy weight TOPSIS method, followed by classification by RSR method.

Among the 179 county-level CDCs in Sichuan Province, 29 county-level CDCs such as Jiangyou, Mianzhu, and Zhongjiang were rated as “good”, and 28 county-level CDCs such as Shiqu, Batang and Daocheng were rated as “poor”.The rest were rated as “medium”. Kruskal-Wallis H test showed that the grading results were statistically significant (H=120.21, P < 0.001).

The overall level of technical support ability of occupational disease surveillance and evaluation of county-level CDCs in Sichuan Province is not high, and there are great differences among economic zones and within cities (prefectures). In order to achieve an overall improvement and balanced development of technical support capacity for occupational disease monitoring and assessment in county-level CDCs in Sichuan Province, more policy attention should be given, occupational and radiological health technology services certification should be vigorously promoted, targeted training and professional title promotion should be strengthened for specialized talents, and critical instruments should be gradually equipped.