Abstract: The invention discloses a standardized method of quantum state verification based on optimal strategy. The specific steps are as follows: (1) Adjust the quantum device to generate the quantum states required; (2) Calculate the measurement basis under the optimal verification strategy; (3) The quantum device generates the quantum state copy by copy, and the optimal measurement basis is performed for each copy. The measurement results are recorded as 1 for success and 0 for failure; (4) Make statistics on the index of first failure Nfirst and the number of success events mpass in N measurements; (5) Estimate the confidence and fidelity of the target state generated by the equipment according to the statistical results, and evaluate and analyze the reliability of the equipment. The invention realizes the standardized verification of the reliability of the quantum device, and estimates the quantum state with fewer resources.