By using historic empirical data of the IPO firms listed in A-share market of China during 1999—2009, the influence is analyzed from the perspective of financing restriction, labor employment increase and firms’ performance growth after their listed in stock market, and the analysis results indicate that the mitigating of the financing restriction of IPO firms can boost the labor employment after IPO, that IPO firms’ investment enlargement in labor capital can significantly improve post-IPO accounting performance and market activities based firm performance, thus, more employment opportunities can be helped to create and firm performance can also be promoted by vigorously developing and perfecting financial market to mitigate the financing restriction of the enterprises, and by enlarging the investment in employment labor capital.