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介绍我国参加国际原子能机构（ＩＡＥＡ）组织的“切尔诺贝利核电站事故后果模式估算国际比对”中采用的模式及其估算结果与实测值以及与其地各国估算结果的比较。提出土壤表面沉积量与农作物可食部分核素浓度估算模式（属半动态模式，其余模式采用国内通用的静态模式）。比较结果表明，对事故后当年的浓度预测结果与实测值符合较好，对事故后第２年及更长时间的预测结果明显偏高，有待改进。
This paper introduces the model adopted by our country in participating in the International Atomic Energy Agency (IAEA) International Comparision of Chernobyl Accident Impact Model Estimation and the comparison of the results with the measured values and the results with the countries in the world. Proposed soil surface deposition and crop edible part of the nuclide concentration estimation model (semi-dynamic model, the rest of the model using the common static mode). The results of the comparison show that the predicted concentration of the year after the accident is in good agreement with the measured value, and the forecast result of the second year and longer after the accident is obviously higher and needs to be improved.