TOPSIS evaluation method is the abbreviation of Technique for Order Preference by Similarity to Ideal Solution. It is a multi-criteria evaluation method developed by Yoon and Hwang (1981). This method can be used in n project A ={Ai│i=1,2,…,n}, and evaluate under m evaluation criteria C={Cj│j=1,2,…,m}. And the performance value of the Ai project in the Cj criterion can be measured in a quantitative way, so that an evaluation matrix can be constructed to determine the best plan selection. This article uses the TOPSIS method to explore the corporate competitiveness of Taiwan's financial holding companies, and objectively evaluates the order of operating performance of each financial holding company. According to the evaluation indicators selected for financial holding companies in this article, it is found that the top 5 financial holding companies for performance evaluation are China National Bills Financial Holdings (2889), Cathay Pacific Financial Holdings (2882), Fubon Financial Holdings (2881), CITIC Financial Holding (2891) and Development Financial Holding (2883), the results can be used as a reference for the financial industry's operating performance evaluation.