The objectives of research are to investigate: (1) The application of Occupational Health and Safety (OHAS) at the Machinery Repair Shop of the Mechanical Engineering Education, Department of Technical and Vocational Education, Faculty of Teacher Training and Education, Sebelas Maret University. (2) The perceptions of students on the application of OHAS at the Machinery Repair Shop of the Mechanical Engineering Education, Department of Technical and Vocational Education, Faculty of Teacher Training and Education, Sebelas Maret University. (3) The risk of hazards at the Machinery Repair Shop of the Mechanical Engineering Education, Department of Technical and Vocational Education, Faculty of Teacher Training and Education, Sebelas Maret University. The research used the descriptive qualitative method. It was conducted at the Machinery Repair Shop of the Mechanical Engineering Education, Department of Technical and Vocational Education, Faculty of Teacher Training and Education, Sebelas Maret University. The samples of the research are PTM 2011 students as many as 27 who took the Advanced Machinery course. The data of the research were gathered through observation, questionnaire, in-depth interview, and documentation. The quistionnaire were validated by using the correlational test of product moment, and their reliability was tested by using the alpha formula. The validity of the data obtained through questionnaire was examined by using the data source triangulation and the data gathering method triangulation. They were then analyzed descriptively by using the interactive model of analysis claimed by Miles Huberman. The conclusion of research was: (1) The Application of OHAS were good enough by well-equipped facilities, however there?s a several lack include the administration of OHAS facilities, health box complexity and an absent-minded students whom not using an APD prepared on machinery repair shop. (2) The perception of students towards the application of OHAS for the components of attitude, knowledge, and action belongs to a high/good category whereas that for the components of the condition for the application of OHAS is classified into low/poor category. (3) The most dominant risk of hazards based on the Failure Mode and Effect Analysis (FMEA) includes noise disturbance, wound caused by metal particles, and breathing disorder caused by dusts.