This research aims to analyze the implementation of Occupational, Health, Security, and Environment (OHSE) in the Electrical Power Installation Department's practical laboratory of Vocational High School 1 Sukatani, Grade 11. The research methodology employed is a quantitative-descriptive approach. The research findings indicate that all students have received counseling related to electrical engineering. The majority of the students, which amounts to 43 individuals (95.6%), are aware of the potential dangers and risks during laboratory practice. However, there are 2 students (4.4%) who have not acquired this knowledge. Regarding the usage of Personal Protective Equipment (PPE), 14 students (31.1%) consistently utilize them, 25 students (55.6%) use them occasionally, and 6 students (13.3%) never use them. Out of the 45 students, 8 have experienced incidents during practice, and 1 out of those 8 did not receive any medical treatment. Furthermore, 14 students (31.1%) always inspect the condition of tools and materials before using them in the laboratory, while the majority of the students occasionally perform these inspections (55.6%), and some never do so (11.1%). Additionally, most students (42.2%) always pay attention to and comply with safety regulations during laboratory practice, but there are some students (6.7%) who never pay attention to or comply with safety regulations.