This thesis discusses the ticketing income risks of urban rail transit operation and management and how to set up income security system.

Beginning with the concept of security function and making use of the basic functions of the security economics,this paper deduces that enterprise s production system security degree should between the security burden minimum and security benefits maximum.

Using traditional methods to analyse the safety of industrial projects, safety benefit and value can only reflect the safety situation of system partially, the effect of analytical results on improving the safety situation of system is limited and its application is not satisfied.

The article discussed safety benefits and studied safety models in geological engineering from the point of view that safety increase output and decrease loss The authors further detailed the method of calculating safety increase benefits, which is very helpful for geological engineering corporations to calculate their economic benefit

In this paper, using qualitative and quantitative method to analyze safety benefit,then based on cobb-Douglas function to discuss optimum allocation of safety investment.

The involvement not only contributes to improving the Chinese national fame expanding China s political and security interests,but also developing the vast African market and winning abundant natural resources.