During this investigation, the current problems in relation to the work in height on a construction site, evaluating the implementation of a prevention program and fall protection and its impact is the accident statistics within the period study January 2012 to March 2014. An accident occurs that generated an impact in the year 2012, an event that is related in this research work, such as the problem that motivates the execution of control activities and the measurement of efficacy within injuries learned triggers of this event. It was clearly demonstrated against the indicators practically not only the reduction in the number of height-related events, but also the reduction in the severity of the same on the affected workers. The system implemented allows evidence that the process used and was effective.