The topic of this paper is "Risk Assessment at Work". This paper will explain the concept of risk, principles and risk assessment procedure, international standards and risk management systems. Risk assessment is a procedure that determines the level of danger and how it affects the workers and their health. The risk assessment should include the controls needed to remove, reduce and minimize the risk. Risk assessment identifies harmful effects and dangers at the workplace, and the causes of injuries and work-related illnesses are determined. This paper is divided into several parts where the risk assessment at work and then risk management systems are explained. This paper deals with the topic "Risk Assessment at Work", the goal of which is to inform about the importance and approach of risk assessment of health and safety at work through identification, analysis, treatment, evaluation, and risk monitoring Risk assessment is the foundation of every safe work.