| In recent years, dairy products safety issues have appeared one after another, attracted the focus of consumers around the world. Dairy products need extremely high requirements on processing, storage, transport, distribution and other links of the Cold Chain Logistics for its own particularity, some safety incidents are more likely to occur in the Cold Chain Logistics processes. From the point of dairy products quality security in Cold Chain Logistics systems, its concepts, impact factors, the evaluation method are studied.Based on the comb of related literature on dairy Cold Chain Logistics both at home and abroad, Detailed analysis are used for cross-region dairy products cold chain storage systems, long-distance transportation logistics operation in warehouse, A qualitative analysis of the safety of dairy products of each link is made in the critical factor of temperature, humidity, time etc. from the comparison of some common methods of comprehensive evaluation, combined with various risk evaluation methods for their applicability, advantages and disadvantage. The evaluation method—GO-FLOW is identified as the basic method for risk quantitative calculation in this article, and use GO-FLOW method, doing the risk evaluation divided into incomplete cold chain and complete cold chain for cross-region dairy products. Combining the specific case, taking a concrete quantitative analysis of every link in cold chain logistics systems for its reliability and failure rate, learned the Reliability of the system and the key link of risk in Cold Chain Logistics systems. In a conclusion, the most critical factor that affects the security of dairy cold chain logistics system is determined.By changing the system parameters of the system most critical factor that affects the system security, the GO-FLOW method is used again to make the safety evaluation of the revised system. At last, the security of the amended system is significantly increased, so as to verify the validity of the evaluation system. Depending on the results of the evaluation system, some prevention measures for the risks of dairy cold chain logistics system are raised. |