To effectively eliminate the fuzziness of indicators in the process of ship-bridge collision risk assessment, an intuitionstic fuzzy set theory is introduced to establish a ship-bridge collision risk assessment model. The model selects 10 risk evaluation indicators to form an index set, and the risk division criteria constitutes an evaluation set. The intuitionistic fuzzy numbers are converted into an intuitionistic fuzzy decision matrix according to the index set and the evaluation set, and then the objective weights of each index factor are calculated using the intuitionistic fuzzy entropy formula. The analytical method computes the subjective weights, and obtains the combined weights from the idea of intuitionistic fuzzy set theory, so as to calculate the comprehensive value of the evaluation sample. The verification of an example shows that the evaluation results of the intuitionistic fuzzy set theory and the fuzzy matter-element theory are generally close, and the theory is feasible and effective, and provides a new method for evaluating ship-bridge collision risk.
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