The paper studies the factors affecting the development of the voluntary pension fund system at enterprises from the employers' perspective. Through a survey of 37 enterprises, the paper clarifies employers' awareness of the importance of voluntary pension funds, the need for enterprises' pension funds, and their willingness to invest in the voluntary retirement fund. The findings show that 78.83% of businessmen believe that developing a voluntary pension fund system is necessary because voluntary pension insurance is a way for employees to protect themselves and their families against risks. 100% of business owners want a voluntary pension fund based on an agreement between the enterprises and employees, while 60% of employers prefer the blended mechanism with government supervision and support. Regarding the level of investment in social insurance and other retirement regimes, 68% of enterprises spend less than 10% of total costs to implement the program; 30% of enterprises use from 10% to 20% of total costs to implement the program. Employers show their prudence when considering a voluntary pension fund at their enterprises. More than 60% of employers concern about the fund security, 24% considers the impact of macro economic factors on the fund performance.