The research status of risk analysis concerning with the process of flood control and disaster reduction was summarized that consists of engineering risk analysis,investment risk analysis and decision-making risk analysis in flood control.

This paper first proposes a definition for equipment risk,and then formulates a cost-based equipment risk allocation optimization model.

Based on the life cycle risk analysis principle of construction project,this paper researches the risk allocation problems between government client and agent in decision making stage,operation stage (design,construction stage) and usage stage of agent construction institution.

Moreover, the risk allocation in fixed price contract is analyzed, and the difference between fixed price contract and unit price contract is identified.

Analysis of project financing risk distribution Based on Investor;

Principles and methods of risk distribution of PPP mode financing for infrastructure;

According to main manifestation of engineering contract risk, risk prevention in contract management and rational order of risk distribution,the author analyzes risk management of engineering contract,and proposes the methods to avoid and distribute risks in concrete project contract management from the angle of applicability,in order to promote well development of construction enterprise.

Counter measures of proprietors to deal with project risks;

In recent years,the increase of project risk has made the banks bear corresponding larger and larger risk in project loan items.

This paper proposes a control method to solve remotely the project risk under this situation, and has analysed among others some of the key points and bottlenecks.