Objective: The aim of this study is to introduce activities for job stress management in shipbuilding industry. Background: Recently, workers are exposed many job stress like workload, interpersonal conflict while management condition of company changes day by day. Particularly, shipbuilding industry has poor environment which aggravating the stress to the workers. So managing job stress may be more important. Method: The method of this study is to investigate preventive actions of job stress in "S" shipbuilding company. Results: This study through case of "S" shipbuilding company introduce activities of prevention of job stress including identification of level of job stress, managing of psychological clinic, training of worker and manager. Conclusion: In order to manage the job stress in the workplace, 1) The total management system based on the concern of the management in the workplace has to be constructed. 2) Computerized system for operation of total management system has to be constructed. 3) New employees need training for Job Stress. Application: Through this case study, I hope to help prevention activities of job stress in the workplace.