In order to address the deficiencies in the evaluation of the practical teaching performance in colleges and universities, this paper applies the ENTROPY-TOPSIS algorithm based on the modification to the experimental course performance evaluation, and deduces the principle of the specific algorithm. At the same time, the algorithm and the commonly used weighting algorithm hierarchical analysis method and the CRITIC algorithm in the circuit practice results in the process of objective weighting for horizontal comparison. The results show that the method can provide a theoretical basis for the scientific assignment of multi-source heterogeneous evaluation data, effectively eliminating the irrationality due to subjective factors, and making teachers more objective and scientific in the assessment of experimental grades.