Objectives : This research is performed to arrange oral health improvement program and improve the quality of life by raising total health index of male workers. The relationship between the oral health, oral health index and total health index of workers are investigated through the direct or indirect effects based on structural equational modeling. Methods : Total 272 people who work in Gyeong-Nam province participated in this survey. Results : Oral health knowledge has an meaningful direct effects on the oral health practice with ${gamma}$=.259 and dietary pattern with ${gamma}$=.224. Total health index has indirect relationship with the oral health index with ${eta}$=.141 and dietary pattern has direct relationship with the oral health index with ${eta}$=.315. The oral health index has direct relationship with total health index with ${eta}$=.454. Conclusions : Our research shows that there is meaningful relationship between the oral health, oral health index and total health index of workers. The systematic and continuous programs for oral health should be transferred to workers for the raise of oral health and the quality of the life.