Abstract: The highway tunnel collapse in tunnel construction is the most common disaster accidents, so the tunnel for the risk assessment is particularly important, through the collection of highway tunnel landslide case history information; and comparing various factors relative to the important degree of highway tunnel collapse, find out the seven effects in the main risk factor for the class of surrounding rock, groundwater conditions, buried deep, large span, bias, blasting disturbance, construction management level, and then based on the fuzzy comprehensive evaluation method and frequency analysis method to determine the risk factor evaluation matrix and the corresponding weight, get the fuzzy comprehensive evaluation model, the model according to the specific situation of tunnel and the concept of fuzzy mathematics the tunnel risk assessment results, in the example verified, with the higher the objectivity and practicability.