The results of this research have found that employees in the Office, there are a total of 51 people. As a female, 31 people. Male 20 Most are in the range 20-30 years. And work experience The majority of 3-6 years. From its assessment methods with ROSA found that employees may have problems in ergonomics The total number of 46 people Which are in the high risk level scores 5 points By all employees There is a side issue. To place the computer. The total number of 46 people 100% Placement of telephone, adjusting the chair while working, and the size of the mouse number of 17 people 27.45% Proposes a modification work postures and design work station for principle of ergonomics. For the prevention of the personal working behaviors and the design of the should be improved based on the ergonomic