Abstract: A building roof photovoltaic power quality evaluation method based on AHP and CRITIC-Entropy is provided. The method includes: obtaining data values of evaluation indicators of a building roof photovoltaic power quality, and constructing a judgment matrix and a probability matrix according to the data values of the evaluation indicators; processing the judgment matrix to obtain a subjective corresponding weight of each of the evaluation indicators by using an improved AHP method, and solving the probability matrix to obtain an objective corresponding weight of each of the evaluation indicators based on the CRITIC-Entropy; and integrating the subjective corresponding weights and the objective corresponding weights to obtain comprehensive weight coefficients, and determining a final evaluation result by the comprehensive weight coefficients and the probability matrix.