Aiming at the problem of multi-attribute evaluation with triangular intuitionistic fuzzy number, a multi-attribute evaluation method based on triangular intuitionistic fuzzy cloud model was proposed, which reflected the degree of support, non-support and hesitation of uncertain information. Firstly, considering the fuzziness and hesitation of decision makers in the evaluation process, the evaluation information of decision makers was transformed into triangular intuitionistic fuzzy numbers. Secondly, the triangular intuitionistic fuzzy decision matrix was constructed by calculating the numerical characteristics based on cloud model theory. Thirdly, the decision matrix was integrated to get the evaluation synthetic cloud and draw the three-dimensional cloud map. Finally, the results were analyzed by computing cloud similarity, and reasonable suggestions were put forward for the evaluation object. An example shows that the method based on triangular intuitionistic fuzzy cloud model can be effectively applied to the multi-attribute evaluation problem.