This article aimed to explore the correlation between the foreign exchange market and the performances of 14 financial holding companies in Taiwan was analyzed by the panel data test of random effect, as well as the panel unit root test and the co-integration test from the first quarter of 2003 to the third quarter of 2018, with a total of 882 samples, The empirical find that the Pound, Euro and Yen have unit root effect, which indicates that the sequences are not stable, and there is a long-term relationship with the exchange rate and ROA、ROE、 EPS. In addition, the estimate of panel data discovered that exchange rate have a significant impact on Cathay Pacific's stock price and Fubon Gold's price. The main contribution of this research is the application of panel integration technology to examine the relationship between the performances of financial holding companies and foreign exchange market. The innovation of this paper is in addition to considering the impact of the financial holding company performance and foreign exchange, this study further analyzes the relationship between other exchange rates, which can provide investment trading strategy references.