The present research work aims to determine whether there is a direct relationship between work stress and performance of workers of the municipality district of San Pedro de Lloc. The research problem is referred to the following question: would of how influence occupational stress in the performance of workers of the municipality district of San Pedro de Lloc - year 2017?, which hypothesis is: the job stress affects negatively the performance of the workers of the district municipality of San Pedro de Lloc year - 2017., highlighting as study variables: Independent variable: work-related stress; and the dependent variable: performance of the workers. The design of transverse descriptive investigation, as well as inductive methods; analytical, statistical and research data collection, as the survey technique. Through studies in Municipality district de San Pedro de Lloc it can be conclud...