The stock market is volatile. The fluctuation of stock prices contains information content that affects the value of the enterprise, exacerbates financial constraints, and thus limits the development of company. In view of this, the purpose of this study is to explore the relationship between stock price synchronicity and financial constraints of listed firms in Taiwan. This paper takes listed companies of Taiwan Stock Exchange Corporation from March 2010 to September 2018 (excluding financial industry) and electronic industry stocks as samples. Regression analysis is performed using least squares estimation. The empirical results show that the stock price synchronicity of listed companies can enhance corporate financial constraints, and the positive relationship between the stock price synchronicity and corporate financial constraints in the electronic industry is more significant.