Construction accidents are a very important issue to be considered by construction industry practitioners because they can result in death, permanent disability, project delays and even temporary suspension of construction activities. Precast concrete construction is also hazardous in its construction process, especially during the installation of precast components. Industrialized building system (IBS) introduced to provide challenges and fulfill demands for Malaysia’s development in construction in order to become a fully developed country, However, aside from positive effects there are negative consequences arising from the incremental installations of large components and the usage of various equipment and machinery which will increase hazards in construction activities. Hence, in order to ensure a safe and conducive working environment, hazard identifications, risk assessment and risk control as in order to implement HIRARC. This study aims to contribute to a better understanding of safety by comparing installations precast concrete members and the conventional method during on site construction process. The scope of the study is focuses on activities beam, slab and wall during installation for both methods and involving the safety aspect, which is use by the contractor. The data collected through document study, interview, and industrial visit in order to identify the safety requirements in precast concrete and conventional method. The whole interviews and research surveys conducted by contractors who have experience in conducting both methods. Results indicate that the safety measures adopted by contractor during in precast construction process is good in safety aspect compared to conventional method during workflow activity in construction sites. In conclusion, this study can increase boost up knowledge and give detailed information about safety in both methods and implementation of HIRARC in construction industry to increase awareness until 0% of accident achieves.