Abstract： Objective:To understand the current situation of the construction of occupational health information system in China and put forward countermeasures and suggestions for the construction of occupational health information system.Methods:In November 2019 and April 2020, a cross-sectional survey was conducted on the occupational health information systems of national, provincial and some central enterprises. A total of 57 occupational health information systems were investigated, including 4 national systems, 44 provincial systems and 9 industrial systems. The terminal type, main function, construction type, user classification and main authority, computer terminal structure, data collection mode, data transmission mode, data docking are analyzed.Results:The four national level systems all adopt B/S structure, and all transmit network data through computer terminals. The main data acquisition mode is online acquisition and external system docking. Among the 44 provincial-level systems, 41 (93.18%) were self built systems, 75.00% (33/44) were computer terminals, and 90.91% (40/44) were B/s structures; 17 (38.64%) systems used multiple data acquisition methods; 13.64% (6/44) systems used multiple data transmission methodsand the main way of data transmission method is network report (88.64%, 39/44) ; 84.09% (37/44) of the system network access mode was Internet mode. Among the nine industry systems, 66.67% (6/9) of them deployed servers in the form of self built computer rooms, 77.78% (7/9) of them supported docking and reserved ports; 66.67% (6/9) of them used computer terminals, and 100.00% (9/9) of them used B/S structure; 77.78% (7/9) of them used manual filling for data collection.Conclusion:The construction of occupational health information system in China has many problems, such as scattered and separate construction, and lack of effective data sharing between related systems, it＇s urgent to unify the standard and plan as a whole.