As an important auxiliary means of pharmacoeconomics evaluation, budget impact analysis can effectively measure the affordability of medical insurance fund, and plays a significant role in the process of medical insurance access negotiation, adjustment of medical insurance reimbursement directory and establishment of payment price. The quality of budget impact analysis data has a great impact on the analysis results and the scientific decision-making. When the existing data cannot meet the requirements of the paper, relevant software is needed to carry out Delphi method to ensure the data accuracy. Infopoll is a powerful, easy-to-use application that designs consultation questionnaires by providing multiple question choices and multiple forms of answer settings, as well as detailed statistical charts for results analysis. This paper introduces how to obtain the data of budget impact analysis based on Delphi method using Infopoll software, and analyzes the main results in detail.