With the aim of study about the real situation of worker's health in Thainguyen ferrous compound factory, a cross-sectional and retrospective study was carried out. The results showed that the worker's health has problems especially workers doing in electro-melting workshop: IV and V health categories were high, some diseases were higher than that in community: respiratory, nose-throat infection. Diseases in bone and articulation are popularly: painful bone- articulation, rhematics... The authors recommened that: primary health care should be applied more often for all workers.