To address the problems in the evaluation of science and technology awards, this paper proposed an improved CRITIC method, which was modified by coefficient of standard deviation to carry on the dynamic empowerment. And combined with cloud model, the method used reverse cloud generator to construct a fuzzy evaluation matrix and used the virtual cloud to calculate the expectation entropy and hyper entropy of evaluated project to get and sort the evaluation results. This method can consider the fuzziness and the randomness of expert score in the evaluation of science and technology awards, and realize the conversion between the qualitative linguistic and the quantitative numerical value, thus reducing the interference of expert subjective factors and making the results more accurate and objective.