It will be clear to everybody that the accident prevention is an essential problem to the welfare of society．However，the methodology for this problem is not always established．In this paper，the author claimed that the approach from both sides Qf scientific and social regions is indispensable to the solution of such problem．Because the measures called prevention is situated at a boundary of the social causes and natural phenomena．Besides the author suggested that the concept of institutionalization seems to be very important as an approach from social side．
