| In recent years, Safety is becoming more and more important than before because of safety investment shortage. It is an important question for enterprise that how to confirm safety investment and allot safety investment in the process of production. The relationship between safety investment and safety benefit was analyzed and studied in this paper. Presently the study about rationality of safety investment is not enough, and overall was researched to settle some questions. There is no systemic model to settle rationality of safety investment. Grey model about how to forecast safety investment and optimized model about safety investment systematized, and was applied to settle the question that safety investment scale and safety investment orientation in the safety investment. At last, apply the systemic model to some electric factory, which result was approved a scientific feasible method, and set a good example for the same. |