Construction work is a hazardous land-based job. Some construction site jobs include airport, seaport, dam, tunnel, building houses, roads, workplaces and repair and maintain infrastructures. This work includes many hazardous task and conditions such as working with height, excavation, noise, dust, power tools and equipment. The most common fatalities are caused by the fatal four: falls, being struck by an object, electrocutions, and being caught in between two objects. This subject brings students to figure out of before, during, and after construction process and its risk and how to manage the risk by using several OH&S construction theories.