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The mine is affected by the external environment and internal factors. It is very likely that there will be landslides, and the degree of landslide will be different, and the impact will be different. The mine landslide risk assessment model currently studied has poor ability to collect data, and it is impossible to study the data in completeness. It is difficult to achieve dynamic assessment, and the decision-making scheme obtained is not scientific enough. Aiming at the above problems, based on the traditional mine collapse risk assessment model, a new model is designed to determine the factor finding principle of mine collapse risk index system, and the indicators are standardized, according to the identified proportion of mine collapse risk indicators. The grading function, after the game, selects the appropriate utility parameter factor to analyze the game data, determines the contradiction between the internal factors of the mine landslide risk and the utility of the external factors, and conducts the risk assessment with dynamic criteria. The experimental results show that the improved mine landslide risk assessment model is clear and reliable, and the accuracy of the assessment results is greatly improved.